diff --git a/dev_requirements/requirements-linting.txt b/dev_requirements/requirements-linting.txt
index 278cd5c8..fb03f883 100644
--- a/dev_requirements/requirements-linting.txt
+++ b/dev_requirements/requirements-linting.txt
@@ -5,7 +5,7 @@
 #
 #    pip-compile-multi
 #
-astroid==3.1.0
+astroid==3.2.1
     # via pylint
 dill==0.3.8
     # via pylint
@@ -15,7 +15,7 @@ mccabe==0.7.0
     # via pylint
 platformdirs==4.2.0
     # via pylint
-pylint==3.1.1
+pylint==3.2.0
     # via -r dev_requirements/requirements-linting.in
 tomlkit==0.12.5
     # via pylint
diff --git a/requirements.txt b/requirements.txt
index 19defecf..6967830c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ pydantic-core==2.18.2
     # via pydantic
 python-dateutil==2.9.0.post0
     # via pandas
-python-docx==1.1.0
+python-docx==1.1.2
     # via kohlrahbi (pyproject.toml)
 pytz==2024.1
     # via
diff --git a/src/kohlrahbi/__init__.py b/src/kohlrahbi/__init__.py
index 56786943..812a57dd 100644
--- a/src/kohlrahbi/__init__.py
+++ b/src/kohlrahbi/__init__.py
@@ -12,7 +12,7 @@
 
 @click.group()
 @click.version_option(version=version)
-def cli():
+def cli() -> None:
     """Kohlrahbi CLI tool"""
 
 
diff --git a/src/kohlrahbi/ahb/__init__.py b/src/kohlrahbi/ahb/__init__.py
index 4e8af948..771ce2f1 100644
--- a/src/kohlrahbi/ahb/__init__.py
+++ b/src/kohlrahbi/ahb/__init__.py
@@ -9,10 +9,10 @@
 from typing import Any, Dict, Optional
 
 import click
-import docx  # type: ignore
+import docx
 import tomlkit
-from docx.document import Document  # type:ignore[import]
-from docx.table import Table  # type:ignore[import]
+from docx.document import Document
+from docx.table import Table
 from maus.edifact import EdifactFormatVersion
 
 from kohlrahbi.ahbtable.ahbtable import AhbTable
@@ -48,7 +48,7 @@ def process_ahb_table(
     pruefi: str,
     output_path: Path,
     file_type: str,
-):
+) -> None:
     """
     Process the ahb table.
     """
@@ -98,7 +98,7 @@ def process_pruefi(
     path_to_ahb_docx_file: Path,
     output_path: Path,
     file_type: str,
-):
+) -> None:
     """
     Process one pruefi.
     If the input path ends with .docx, we assume that the file containing the pruefi is given.
@@ -183,7 +183,7 @@ def extract_pruefis_from_table(table: Table) -> list[str]:
 
 def table_header_contains_text_pruefidentifikator(table: Table) -> bool:
     """Checks if the table header contains the text 'Prüfidentifikator'."""
-    return table.row_cells(0)[-1].paragraphs[-1].text.startswith("Prüfidentifikator")
+    return table.row_cells(0)[-1].paragraphs[-1].text.startswith("Prüfidentifikator")  # type:ignore[no-any-return]
 
 
 def get_pruefi_to_file_mapping(basic_input_path: Path, format_version: EdifactFormatVersion) -> dict[str, str]:
diff --git a/src/kohlrahbi/ahb/command.py b/src/kohlrahbi/ahb/command.py
index d266cbe8..a068d38d 100644
--- a/src/kohlrahbi/ahb/command.py
+++ b/src/kohlrahbi/ahb/command.py
@@ -12,7 +12,7 @@
 from kohlrahbi.enums.ahbexportfileformat import AhbExportFileFormat
 
 
-def check_python_version():
+def check_python_version() -> None:
     """
     Check if the Python interpreter is greater or equal to 3.11
     """
@@ -24,7 +24,7 @@ def check_python_version():
 
 
 # pylint: disable=unused-argument
-def validate_path(ctx, param, value):
+def validate_path(ctx, param, value) -> Path:  # type:ignore[no-untyped-def]
     """
     Ensure the path exists or offer to create it.
     """
@@ -97,7 +97,7 @@ def ahb(
     format_version: EdifactFormatVersion | str,
     assume_yes: bool,  # pylint: disable=unused-argument
     # it is used by the callback function of the output-path
-):
+) -> None:
     """
     Scrape AHB documents for pruefidentifikatoren.
     This is a command line interface for the pruefis module.
diff --git a/src/kohlrahbi/ahbtable/ahbcondtions.py b/src/kohlrahbi/ahbtable/ahbcondtions.py
index 08d049aa..f2296e72 100644
--- a/src/kohlrahbi/ahbtable/ahbcondtions.py
+++ b/src/kohlrahbi/ahbtable/ahbcondtions.py
@@ -4,7 +4,7 @@
 import re
 from pathlib import Path
 
-from docx.table import Table as DocxTable  # type: ignore[import-untyped]
+from docx.table import Table as DocxTable
 from maus.edifact import EdifactFormat
 from pydantic import BaseModel, ConfigDict
 
@@ -53,10 +53,11 @@ def collect_conditions(
         logger.info("The package conditions for %s were collected.", edifact_format)
         return conditions_dict
 
-    def include_condition_dict(self, to_add=dict[EdifactFormat, dict[str, str]] | None) -> None:
+    def include_condition_dict(self, to_add: dict[EdifactFormat, dict[str, str]] | None) -> None:
         """ " Include a dict of conditions to the conditions_dict"""
         if to_add is None:
             logger.info("Conditions dict to be added is empty.")
+            return
         for edifact_format, edi_cond_dict in to_add.items():
             for condition_key, condition_text in edi_cond_dict.items():
                 if edifact_format in self.conditions_dict:
@@ -117,8 +118,7 @@ def parse_conditions_from_string(
         # check whether condition was already collected:
         existing_text = conditions_dict[edifact_format].get(match[0])
         is_condition_key_collected_yet = existing_text is not None
-        if is_condition_key_collected_yet and existing_text is not None:
-            key_exits_but_shorter_text = len(text) > len(existing_text)
+        key_exits_but_shorter_text = existing_text is not None and len(text) > len(existing_text)
         if not is_condition_key_collected_yet or key_exits_but_shorter_text:
             conditions_dict[edifact_format][match[0]] = text
     return conditions_dict
diff --git a/src/kohlrahbi/ahbtable/ahbpackagetable.py b/src/kohlrahbi/ahbtable/ahbpackagetable.py
index 7e40e1fc..22601bc1 100644
--- a/src/kohlrahbi/ahbtable/ahbpackagetable.py
+++ b/src/kohlrahbi/ahbtable/ahbpackagetable.py
@@ -7,7 +7,7 @@ class which contains AHB package condition table
 from pathlib import Path
 
 import pandas as pd
-from docx.table import Table as DocxTable  # type: ignore[import-untyped]
+from docx.table import Table as DocxTable
 from maus.edifact import EdifactFormat
 from pydantic import BaseModel, ConfigDict
 
@@ -52,7 +52,7 @@ def provide_conditions(self, edifact_format: EdifactFormat) -> dict[EdifactForma
         logger.info("The package conditions for %s were collected.", edifact_format)
         return conditions_dict
 
-    def provide_packages(self, edifact_format: EdifactFormat):
+    def provide_packages(self, edifact_format: EdifactFormat) -> None:
         """collect conditions from package table and store them in conditions dict."""
         package_dict: dict[EdifactFormat, dict[str, str]] = {edifact_format: {}}
 
@@ -71,20 +71,20 @@ def provide_packages(self, edifact_format: EdifactFormat):
                     # check whether package was already collected:
                     existing_text = package_dict[edifact_format].get(package)
                     is_package_key_collected_yet = existing_text is not None
-                    if is_package_key_collected_yet:
-                        key_exits_but_shorter_text = len(package_conditions) > len(
-                            existing_text  # type: ignore[arg-type]
-                        )  # type: ignore[arg-type]
+                    key_exits_but_shorter_text = existing_text is not None and len(package_conditions) > len(
+                        existing_text
+                    )
                     if not is_package_key_collected_yet or key_exits_but_shorter_text:
                         package_dict[edifact_format][package] = package_conditions
 
         logger.info("Packages for %s were collected.", edifact_format)
         self.package_dict = package_dict
 
-    def include_package_dict(self, to_add=dict[EdifactFormat, dict[str, str]] | None) -> None:
+    def include_package_dict(self, to_add: dict[EdifactFormat, dict[str, str]] | None) -> None:
         """Include a dict of conditions to the conditions_dict"""
         if to_add is None:
             logger.info("Packages dict to be added is empty.")
+            return
         for edifact_format, edi_cond_dict in to_add.items():
             for package_key, package_conditions in edi_cond_dict.items():
                 if edifact_format in self.package_dict:
diff --git a/src/kohlrahbi/ahbtable/ahbsubtable.py b/src/kohlrahbi/ahbtable/ahbsubtable.py
index d232ab85..18f1bc15 100644
--- a/src/kohlrahbi/ahbtable/ahbsubtable.py
+++ b/src/kohlrahbi/ahbtable/ahbsubtable.py
@@ -5,12 +5,13 @@
 from typing import Generator
 
 import pandas as pd
-from docx.table import Table as DocxTable  # type:ignore[import]
-from docx.table import _Cell  # type:ignore[import]
+from docx.table import Table as DocxTable
+from docx.table import _Cell, _Row
 from pydantic import BaseModel, ConfigDict
 
 from kohlrahbi.ahbtable.ahbtablerow import AhbTableRow
-from kohlrahbi.row_type_checker import RowType, get_row_type
+from kohlrahbi.enums import RowType
+from kohlrahbi.row_type_checker import get_row_type
 from kohlrahbi.seed import Seed
 
 
@@ -122,7 +123,7 @@ def from_headless_table(cls, tmd: Seed, docx_table: DocxTable) -> "AhbSubTable":
         return cls(table_meta_data=tmd, table=ahb_table_dataframe)
 
     @staticmethod
-    def iter_visible_cells(row) -> Generator[_Cell, None, None]:
+    def iter_visible_cells(row: _Row) -> Generator[_Cell, None, None]:
         """
         This function makes sure that you will iterate over the cells you see in the word document.
         For more information go to https://github.com/python-openxml/python-docx/issues/970#issuecomment-877386927
diff --git a/src/kohlrahbi/ahbtable/ahbtable.py b/src/kohlrahbi/ahbtable/ahbtable.py
index 6a299ca4..52cbb524 100644
--- a/src/kohlrahbi/ahbtable/ahbtable.py
+++ b/src/kohlrahbi/ahbtable/ahbtable.py
@@ -91,7 +91,7 @@ def append_ahb_sub_table(self, ahb_sub_table: AhbSubTable) -> None:
             self.table = pd.concat([self.table, ahb_sub_table.table], ignore_index=True)
 
     @staticmethod
-    def line_contains_only_segment_gruppe(raw_line: pd.Series) -> bool:
+    def line_contains_only_segment_gruppe(raw_line: pd.Series) -> bool:  # type:ignore[type-arg]
         """
         Returns true if the given raw line only contains some meaningful data in the "Segment Gruppe" key
         """
@@ -112,6 +112,7 @@ def sanitize(self) -> None:
         iterable_ahb_table = peekable(self.table.iterrows())
         self.table.reset_index(drop=True, inplace=True)
         for _, row in iterable_ahb_table:
+            # pylint: disable=unpacking-non-sequence # it is a tuple indeed
             index_of_next_row, next_row = iterable_ahb_table.peek(
                 (
                     0,
diff --git a/src/kohlrahbi/ahbtable/ahbtablerow.py b/src/kohlrahbi/ahbtable/ahbtablerow.py
index bb48404d..2a6073ac 100644
--- a/src/kohlrahbi/ahbtable/ahbtablerow.py
+++ b/src/kohlrahbi/ahbtable/ahbtablerow.py
@@ -5,11 +5,11 @@
 from typing import Optional
 
 import pandas as pd
-from docx.table import _Cell  # type:ignore[import]
+from docx.table import _Cell
 from pydantic import BaseModel, ConfigDict
 
 from kohlrahbi.docxtablecells import BedingungCell, BodyCell, EdifactStrukturCell
-from kohlrahbi.row_type_checker import RowType
+from kohlrahbi.enums import RowType
 from kohlrahbi.seed import Seed
 
 
@@ -46,7 +46,9 @@ def parse(
             dtype="str",
         )
         # pylint: disable=unsubscriptable-object, no-member
-        empty_row: pd.Series[str] = pd.Series(len(ahb_row_dataframe.columns) * [""], index=self.seed.column_headers)
+        empty_row: pd.Series = pd.Series(  # type:ignore[type-arg]
+            len(ahb_row_dataframe.columns) * [""], index=self.seed.column_headers
+        )
 
         ahb_row_dataframe = pd.concat([ahb_row_dataframe, empty_row.to_frame().T], ignore_index=True)
 
diff --git a/src/kohlrahbi/changehistory/__init__.py b/src/kohlrahbi/changehistory/__init__.py
index 4733fbed..e3633fe3 100644
--- a/src/kohlrahbi/changehistory/__init__.py
+++ b/src/kohlrahbi/changehistory/__init__.py
@@ -13,10 +13,10 @@
 from pathlib import Path
 from typing import Optional
 
-import docx  # type: ignore
+import docx
 import pandas as pd
-from docx.document import Document  # type:ignore[import]
-from docx.table import Table  # type: ignore
+from docx.document import Document
+from docx.table import Table
 
 from kohlrahbi.changehistory.changehistorytable import ChangeHistoryTable
 from kohlrahbi.docxfilefinder import DocxFileFinder
diff --git a/src/kohlrahbi/changehistory/changehistorytable.py b/src/kohlrahbi/changehistory/changehistorytable.py
index c21d9fce..73059b61 100644
--- a/src/kohlrahbi/changehistory/changehistorytable.py
+++ b/src/kohlrahbi/changehistory/changehistorytable.py
@@ -3,7 +3,7 @@
 """
 
 import pandas as pd
-from docx.table import Table  # type:ignore[import]
+from docx.table import Table
 from pydantic import BaseModel, ConfigDict
 
 from kohlrahbi.ahbtable.ahbsubtable import AhbSubTable
@@ -54,7 +54,7 @@ def is_empty(val: str) -> bool:
             return pd.isna(val) or val == ""
 
         # Define a function to check if a value is considered empty for our case
-        def is_the_first_column_empty(row: pd.Series) -> bool:
+        def is_the_first_column_empty(row: pd.Series) -> bool:  # type:ignore[type-arg]
             """
             Checks if the first column of the given row is empty.
             This is our indicator if the current row is a continuation of the upper row.
diff --git a/src/kohlrahbi/changehistory/command.py b/src/kohlrahbi/changehistory/command.py
index ed9c63a5..81543ef5 100644
--- a/src/kohlrahbi/changehistory/command.py
+++ b/src/kohlrahbi/changehistory/command.py
@@ -47,7 +47,7 @@ def changehistory(
     format_version: EdifactFormatVersion | str,
     assume_yes: bool,  # pylint: disable=unused-argument
     # it is used by the callback function of the output-path
-):
+) -> None:
     """
     Scrape change histories from the input path and save them to the output path.
 
diff --git a/src/kohlrahbi/conditions/__init__.py b/src/kohlrahbi/conditions/__init__.py
index 7416b144..2054b75c 100644
--- a/src/kohlrahbi/conditions/__init__.py
+++ b/src/kohlrahbi/conditions/__init__.py
@@ -4,7 +4,7 @@
 
 from pathlib import Path
 
-import docx  # type: ignore[import-untyped]
+import docx
 from maus.edifact import EdifactFormat, EdifactFormatVersion, get_format_of_pruefidentifikator
 
 from kohlrahbi.ahb import get_pruefi_to_file_mapping
@@ -45,8 +45,8 @@ def scrape_conditions(
     for edifact_format, files in all_format_files.items():
         for file in files:
             # pylint: disable=too-many-function-args
-            # type: ignore[call-arg, arg-type]
-            doc = docx.Document(basic_input_path / path_to_file / Path(file))
+            path: Path = basic_input_path / path_to_file / Path(file)
+            doc = docx.Document(str(path.absolute()))
             logger.info("Start scraping conditions for %s in %s", edifact_format, file)
             if not doc:
                 logger.error("Could not open file %s as docx", Path(file))
diff --git a/src/kohlrahbi/conditions/command.py b/src/kohlrahbi/conditions/command.py
index 9a33a5c9..cc406bd5 100644
--- a/src/kohlrahbi/conditions/command.py
+++ b/src/kohlrahbi/conditions/command.py
@@ -28,7 +28,7 @@
 from kohlrahbi.conditions import scrape_conditions
 
 
-def check_python_version():
+def check_python_version() -> None:
     """
     Check if the Python interpreter is greater or equal to 3.11
     """
@@ -40,7 +40,7 @@ def check_python_version():
 
 
 # pylint: disable=unused-argument
-def validate_path(ctx, param, value):
+def validate_path(ctx, param, value) -> Path:  # type:ignore[no-untyped-def]
     """
     Ensure the path exists or offer to create it.
     """
@@ -91,7 +91,7 @@ def validate_path(ctx, param, value):
 )
 def conditions(
     edi_energy_mirror_path: Path, output_path: Path, format_version: EdifactFormatVersion | str, assume_yes: bool
-):
+) -> None:
     """
     Scrape AHB documents for conditions.
     """
diff --git a/src/kohlrahbi/docxfilefinder.py b/src/kohlrahbi/docxfilefinder.py
index 4207b414..f1ca3b86 100644
--- a/src/kohlrahbi/docxfilefinder.py
+++ b/src/kohlrahbi/docxfilefinder.py
@@ -138,7 +138,7 @@ def filter_docx_files_for_edifact_format(self, edifact_format: EdifactFormat) ->
 
         self.paths_to_docx_files = [path for path in self.paths_to_docx_files if str(edifact_format) in path.name]
 
-    def remove_temporary_files(self):
+    def remove_temporary_files(self) -> None:
         """
         This method removes all temporary files from paths_to_docx_files.
         Temporary files lead to the exception `BadZipFile: File is not a zip file`.
diff --git a/src/kohlrahbi/docxtablecells/__init__.py b/src/kohlrahbi/docxtablecells/__init__.py
index 4f840e00..4e897f7e 100644
--- a/src/kohlrahbi/docxtablecells/__init__.py
+++ b/src/kohlrahbi/docxtablecells/__init__.py
@@ -5,3 +5,5 @@
 from .bedinungscell import BedingungCell
 from .bodycell import BodyCell
 from .edifactstrukturcell import EdifactStrukturCell
+
+__all__ = ["BedingungCell", "BodyCell", "EdifactStrukturCell"]
diff --git a/src/kohlrahbi/docxtablecells/bedinungscell.py b/src/kohlrahbi/docxtablecells/bedinungscell.py
index 6720761a..8b77f272 100644
--- a/src/kohlrahbi/docxtablecells/bedinungscell.py
+++ b/src/kohlrahbi/docxtablecells/bedinungscell.py
@@ -5,7 +5,7 @@
 import re
 
 import pandas as pd
-from docx.table import _Cell  # type:ignore[import]
+from docx.table import _Cell
 from pydantic import BaseModel, ConfigDict
 
 
diff --git a/src/kohlrahbi/docxtablecells/bodycell.py b/src/kohlrahbi/docxtablecells/bodycell.py
index 1a82a08c..9749d5dd 100644
--- a/src/kohlrahbi/docxtablecells/bodycell.py
+++ b/src/kohlrahbi/docxtablecells/bodycell.py
@@ -3,7 +3,8 @@
 """
 
 import pandas as pd
-from docx.table import _Cell  # type:ignore[import]
+from docx.table import _Cell
+from docx.text.paragraph import Paragraph
 from maus.reader.flat_ahb_reader import FlatAhbCsvReader
 from pydantic import BaseModel, ConfigDict
 
@@ -103,9 +104,9 @@ def parse(self, ahb_row_dataframe: pd.DataFrame) -> pd.DataFrame:
 
         return ahb_row_dataframe
 
-    def has_paragraph_tabstops(self, paragraph) -> bool:
+    def has_paragraph_tabstops(self, paragraph: Paragraph) -> bool:
         """
         Checks if the given paragraph contains tabstops
         """
         tab_stops = list(paragraph.paragraph_format.tab_stops)
-        return len(tab_stops) > 0
+        return any(tab_stops)
diff --git a/src/kohlrahbi/docxtablecells/edifactstrukturcell.py b/src/kohlrahbi/docxtablecells/edifactstrukturcell.py
index 0907ed53..e6a7eef2 100644
--- a/src/kohlrahbi/docxtablecells/edifactstrukturcell.py
+++ b/src/kohlrahbi/docxtablecells/edifactstrukturcell.py
@@ -5,7 +5,7 @@
 import re
 
 import pandas as pd
-from docx.table import _Cell  # type:ignore[import]
+from docx.table import _Cell
 from pydantic import BaseModel, ConfigDict
 
 _segment_group_pattern = re.compile(r"^SG\d+$")
diff --git a/src/kohlrahbi/enums/__init__.py b/src/kohlrahbi/enums/__init__.py
index a6ba61bb..4bf0a114 100644
--- a/src/kohlrahbi/enums/__init__.py
+++ b/src/kohlrahbi/enums/__init__.py
@@ -4,3 +4,5 @@
 
 from .row_type import RowType
 from .row_type_color import RowTypeColor
+
+__all__ = ["RowType", "RowTypeColor"]
diff --git a/src/kohlrahbi/read_functions.py b/src/kohlrahbi/read_functions.py
index 751e8429..419155f2 100644
--- a/src/kohlrahbi/read_functions.py
+++ b/src/kohlrahbi/read_functions.py
@@ -2,13 +2,13 @@
 A collection of functions to get information from AHB tables.
 """
 
-from typing import Generator, Optional, Tuple, Union
+from typing import Generator, Optional, Tuple, TypeGuard, Union
 
-from docx.document import Document  # type:ignore[import]
-from docx.oxml.table import CT_Tbl  # type:ignore[import]
-from docx.oxml.text.paragraph import CT_P  # type:ignore[import]
-from docx.table import Table, _Cell  # type:ignore[import]
-from docx.text.paragraph import Paragraph  # type:ignore[import]
+from docx.document import Document
+from docx.oxml.table import CT_Tbl
+from docx.oxml.text.paragraph import CT_P
+from docx.table import Table, _Cell
+from docx.text.paragraph import Paragraph
 from maus.edifact import EdifactFormat, get_format_of_pruefidentifikator
 
 from kohlrahbi.ahbtable.ahbcondtions import AhbConditions
@@ -48,7 +48,7 @@ def table_header_starts_with_text_edifact_struktur(table: Table) -> bool:
     return table.cell(row_idx=0, col_idx=0).text.strip() == "EDIFACT Struktur"
 
 
-def is_item_header_of_change_history_section(item: Paragraph | Table | None, style_name: str) -> bool:
+def is_item_header_of_change_history_section(item: Paragraph | Table | None, style_name: str) -> TypeGuard[Paragraph]:
     """
     Checks if the given item is a header of the change history section.
     """
@@ -57,14 +57,14 @@ def is_item_header_of_change_history_section(item: Paragraph | Table | None, sty
     return isinstance(item, Paragraph) and "Änderungshistorie" in item.text and "Heading" in style_name
 
 
-def is_item_text_paragraph(item: Paragraph | Table | None, style_name: str) -> bool:
+def is_item_text_paragraph(item: Paragraph | Table | None, style_name: str) -> TypeGuard[Paragraph]:
     """
     Checks if the given item is a text paragraph.
     """
     return isinstance(item, Paragraph) and "Heading" not in style_name
 
 
-def is_item_table_with_pruefidentifikatoren(item: Paragraph | Table | None) -> bool:
+def is_item_table_with_pruefidentifikatoren(item: Paragraph | Table | None) -> TypeGuard[Table]:
     """
     Check if the item is a Table and contains Pruefidentifikatoren.
 
@@ -78,10 +78,8 @@ def is_item_table_with_pruefidentifikatoren(item: Paragraph | Table | None) -> b
 
 
 def is_item_headless_table(
-    item: Paragraph | Table | None,
-    # seed: Seed | None,
-    ahb_table: AhbTable | None,
-) -> bool:
+    value: tuple[Union[Paragraph, Table, None], Union[AhbTable, None]]
+) -> TypeGuard[tuple[Table, AhbTable]]:
     """
     Checks if the given item is a headless table.
 
@@ -93,11 +91,12 @@ def is_item_headless_table(
     Returns:
         bool: True if the item is a headless table, False otherwise.
     """
+    item, ahb_table = value
     # return isinstance(item, Table) and seed is not None and ahb_table is not None
     return isinstance(item, Table) and ahb_table is not None
 
 
-def get_ahb_table(document, pruefi: str) -> Optional[AhbTable]:
+def get_ahb_table(document: Document, pruefi: str) -> Optional[AhbTable]:
     """
     Reads a docx file and extracts all information for a given Prüfidentifikator.
     If the Prüfidentifikator is not found or we reach the end of the AHB document
@@ -111,8 +110,8 @@ def get_ahb_table(document, pruefi: str) -> Optional[AhbTable]:
         AhbTable or None: The extracted AHB table or None if not found
     """
 
-    ahb_table = None
-    seed = None
+    ahb_table: AhbTable | None = None
+    seed: Seed | None = None
     searched_pruefi_is_found = False
 
     for item in get_all_paragraphs_and_tables(document):
@@ -133,7 +132,7 @@ def get_ahb_table(document, pruefi: str) -> Optional[AhbTable]:
 
         searched_pruefi_is_found, ahb_table = process_table(item, pruefi, searched_pruefi_is_found, ahb_table, seed)
 
-    if ahb_table:
+    if ahb_table is not None:
         ahb_table.sanitize()
         return ahb_table
 
@@ -141,29 +140,37 @@ def get_ahb_table(document, pruefi: str) -> Optional[AhbTable]:
     return None
 
 
-def get_style_name(item) -> str:
+def get_style_name(item: Paragraph | Table) -> str:
     """Extracts and normalizes the style name of a document item."""
-    return item.style.name if item.style else "None"
+    return item.style.name if item.style else "None"  # type:ignore[no-any-return]
 
 
-def reached_end_of_document(style_name, item) -> bool:
+def reached_end_of_document(style_name: str, item: Paragraph | Table | None) -> bool:
     """Checks if the current item marks the end of the document."""
     return is_item_header_of_change_history_section(item, style_name)
 
 
-def update_seed(item, seed):
+def update_seed(item: Paragraph | Table | None, seed: Seed | None) -> Seed | None:
     """Updates the seed if the current item is a table with Prüfidentifikatoren."""
     if is_item_table_with_pruefidentifikatoren(item):
         return Seed.from_table(docx_table=item)
     return seed
 
 
-def should_end_search(pruefi, seed, searched_pruefi_is_found):
+def should_end_search(pruefi: str, seed: Seed | None, searched_pruefi_is_found: bool) -> bool:
     """Determines if the search for the AHB table should end."""
-    return seed and pruefi not in seed.pruefidentifikatoren and searched_pruefi_is_found
+    if seed is None:
+        return False
+    return pruefi not in seed.pruefidentifikatoren and searched_pruefi_is_found
 
 
-def process_table(item, pruefi, searched_pruefi_is_found, ahb_table, seed=None):
+def process_table(
+    item: Paragraph | Table | None,
+    pruefi: str,
+    searched_pruefi_is_found: bool,
+    ahb_table: AhbTable | None,
+    seed: Seed | None = None,
+) -> tuple[bool, AhbTable]:
     """Processes tables to find and build the AHB table."""
     if is_item_table_with_pruefidentifikatoren(item):
         seed = Seed.from_table(docx_table=item)
@@ -174,37 +181,39 @@ def process_table(item, pruefi, searched_pruefi_is_found, ahb_table, seed=None):
             ahb_table = AhbTable.from_ahb_sub_table(ahb_sub_table=ahb_sub_table)
             searched_pruefi_is_found = True
 
-    # elif is_item_headless_table(item, seed, ahb_table):
-    elif is_item_headless_table(item, ahb_table):
+    elif is_item_headless_table((item, ahb_table)):
+        assert ahb_table is not None
+        assert isinstance(item, Table)
+        assert seed is not None
         ahb_sub_table = AhbSubTable.from_headless_table(docx_table=item, tmd=seed)
         ahb_table.append_ahb_sub_table(ahb_sub_table=ahb_sub_table)
-
-    return searched_pruefi_is_found, ahb_table
+    # actually, the ahb_table is none here (see test_kohlrahbi_cli_with_valid_arguments)
+    return searched_pruefi_is_found, ahb_table  # type:ignore[return-value]
 
 
 # Logging functions
-def log_end_of_document(pruefi):
+def log_end_of_document(pruefi: str) -> None:
     """
     Logs that the end of the document was reached before finding the table for a given Prüfi.
     """
     logger.info("Reached the end of the document before finding the table for Prüfi '%s'.", pruefi)
 
 
-def log_end_of_ahb_table(pruefi):
+def log_end_of_ahb_table(pruefi: str) -> None:
     """
     Logs that the end of the AHB table was reached for a given Prüfi.
     """
     logger.info("Reached the end of the AHB table for Prüfi '%s'.", pruefi)
 
 
-def log_found_pruefi(pruefi):
+def log_found_pruefi(pruefi: str) -> None:
     """
     Logs that the AHB table for a given Prüfi was found.
     """
     logger.info("Found the AHB table for Prüfi '%s'.", pruefi)
 
 
-def log_pruefi_not_found(pruefi):
+def log_pruefi_not_found(pruefi: str) -> None:
     """
     Logs that the Prüfi was not found in the provided document.
     """
@@ -275,7 +284,9 @@ def is_last_row_unt_0062(item: Table | Paragraph) -> bool:
     return isinstance(item, Table) and "UNT\t0062" == item.cell(row_idx=-1, col_idx=0).text.strip()
 
 
-def is_relevant_pruefi_table(item: Paragraph | Table, seed: Seed, edifact_format) -> bool:
+def is_relevant_pruefi_table(
+    item: Paragraph | Table, seed: Seed | None, edifact_format: EdifactFormat
+) -> TypeGuard[Table]:
     """compares new pruefis to last pruefi and thus checks whether new table"""
     return (
         isinstance(item, Table)
diff --git a/src/kohlrahbi/row_type_checker.py b/src/kohlrahbi/row_type_checker.py
index ef817dd9..86b9b4b4 100644
--- a/src/kohlrahbi/row_type_checker.py
+++ b/src/kohlrahbi/row_type_checker.py
@@ -2,15 +2,15 @@
 This module contains all functions to define the type of a row of the tables in an AHB.
 """
 
-from docx.oxml.ns import qn  # type:ignore[import]
-from docx.oxml.parser import OxmlElement  # type:ignore[import]
-from docx.shared import RGBColor  # type:ignore[import]
-from docx.table import _Cell  # type:ignore[import]
+from docx.oxml.ns import qn
+from docx.oxml.parser import OxmlElement
+from docx.shared import RGBColor
+from docx.table import _Cell
 
 from kohlrahbi.enums import RowType
 
 
-def set_table_header_bg_color(cell, hex_color: str):
+def set_table_header_bg_color(cell: _Cell, hex_color: str) -> _Cell:
     """
     set background shading for Header Rows
     """
@@ -48,7 +48,8 @@ def is_row_segmentname(edifact_struktur_cell: _Cell) -> bool:
         bool:
     """
     try:
-        return edifact_struktur_cell.paragraphs[0].runs[0].font.color.rgb == RGBColor(128, 128, 128)  # grey
+        colour_is_grey: bool = edifact_struktur_cell.paragraphs[0].runs[0].font.color.rgb == RGBColor(128, 128, 128)
+        return colour_is_grey
     except IndexError:
         return False
 
diff --git a/src/kohlrahbi/seed.py b/src/kohlrahbi/seed.py
index 0a25c323..b051bc2b 100644
--- a/src/kohlrahbi/seed.py
+++ b/src/kohlrahbi/seed.py
@@ -2,7 +2,7 @@
 This module provides a class to collect information which of need for all parsing functions
 """
 
-from docx.table import Table  # type:ignore[import]
+from docx.table import Table
 from pydantic import BaseModel
 
 from kohlrahbi.enums import RowType
@@ -56,7 +56,7 @@ def from_table(cls, docx_table: Table) -> "Seed":
         # metadata
         metadata = table_header.pruefi_meta_data
 
-        base_column_names: list = [
+        base_column_names: list[str] = [
             "Segment Gruppe",
             "Segment",
             "Datenelement",
diff --git a/src/kohlrahbi/table_header.py b/src/kohlrahbi/table_header.py
index 358a644b..892a7cf4 100644
--- a/src/kohlrahbi/table_header.py
+++ b/src/kohlrahbi/table_header.py
@@ -5,8 +5,8 @@
 from enum import StrEnum
 from typing import Dict, List, Mapping, cast
 
-from docx.table import _Cell  # type:ignore[import]
-from docx.text.paragraph import Paragraph  # type:ignore[import]
+from docx.table import _Cell
+from docx.text.paragraph import Paragraph
 from more_itertools import first, last
 from pydantic import BaseModel
 
@@ -157,7 +157,7 @@ def from_header_cell(cls, row_cell: _Cell) -> "TableHeader":
         return cls(pruefi_meta_data=pruefi_meta_data)
 
     @staticmethod
-    def initialize_collector(paragraph) -> Dict[str, Dict[str, str | int]]:
+    def initialize_collector(paragraph: Paragraph) -> Dict[str, Dict[str, str | int]]:
         """Initialize the collector"""
         current_tabstop_positions = get_tabstop_positions(paragraph=paragraph)
         splitted_text = paragraph.text.split("\t")
diff --git a/src/kohlrahbi/unfoldedahb/__init__.py b/src/kohlrahbi/unfoldedahb/__init__.py
index 6fc1c8b6..4a444599 100644
--- a/src/kohlrahbi/unfoldedahb/__init__.py
+++ b/src/kohlrahbi/unfoldedahb/__init__.py
@@ -5,3 +5,5 @@
 from .unfoldedahbline import UnfoldedAhbLine
 from .unfoldedahbtable import UnfoldedAhb
 from .unfoldedahbtablemetadata import UnfoldedAhbTableMetaData
+
+__all__ = ["UnfoldedAhb", "UnfoldedAhbLine", "UnfoldedAhbTableMetaData"]
diff --git a/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py b/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py
index a1039c6b..d5881146 100644
--- a/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py
+++ b/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py
@@ -71,7 +71,7 @@ class UnfoldedAhb(BaseModel):
     unfolded_ahb_lines: list[UnfoldedAhbLine]
 
     @classmethod
-    def from_ahb_table(cls, ahb_table: AhbTable, pruefi: str):
+    def from_ahb_table(cls, ahb_table: AhbTable, pruefi: str) -> "UnfoldedAhb":
         """
         This function creates an UnfoldedAhb from an AhbTable.
         """
@@ -89,7 +89,7 @@ def from_ahb_table(cls, ahb_table: AhbTable, pruefi: str):
             )
 
             if UnfoldedAhb._is_section_name(ahb_row=row):
-                _, next_row = iterable_ahb_table.peek()
+                _, next_row = iterable_ahb_table.peek()  # pylint: disable=unpacking-non-sequence # it is a tuple indeed
                 ahb_expression = next_row[pruefi]
 
                 if _segment_group_pattern.match(next_row["Segment Gruppe"]):
@@ -236,7 +236,7 @@ def _get_section_name(segment_gruppe_or_section_name: str, last_section_name: st
         return last_section_name
 
     @staticmethod
-    def _is_section_name(ahb_row: pd.Series) -> bool:
+    def _is_section_name(ahb_row: pd.Series) -> bool:  # type:ignore[type-arg]
         """
         Checks if the current AHB row is a section name.
         It uses the same logic as the function 'line_contains_only_segment_gruppe'
@@ -245,7 +245,7 @@ def _is_section_name(ahb_row: pd.Series) -> bool:
         return AhbTable.line_contains_only_segment_gruppe(ahb_row)
 
     @staticmethod
-    def _is_segment_group(ahb_row: pd.Series) -> bool:
+    def _is_segment_group(ahb_row: pd.Series) -> bool:  # type:ignore[type-arg]
         """Checks if the current AHB row is a segment group."""
 
         if _segment_group_pattern.match(ahb_row["Segment Gruppe"]) and not ahb_row["Segment"]:
@@ -253,7 +253,7 @@ def _is_segment_group(ahb_row: pd.Series) -> bool:
         return False
 
     @staticmethod
-    def _is_segment_opening_line(ahb_row: pd.Series) -> bool:
+    def _is_segment_opening_line(ahb_row: pd.Series) -> bool:  # type:ignore[type-arg]
         """Checks if the current AHB row is a segment opening line.
         Example:
 
@@ -273,7 +273,7 @@ def _is_segment_opening_line(ahb_row: pd.Series) -> bool:
         return False
 
     @staticmethod
-    def _is_just_segment(ahb_row: pd.Series) -> bool:
+    def _is_just_segment(ahb_row: pd.Series) -> bool:  # type:ignore[type-arg]
         """
         Checks if the given AHB row is a segment
         """
@@ -287,7 +287,7 @@ def _is_just_segment(ahb_row: pd.Series) -> bool:
         return False
 
     @staticmethod
-    def _is_dataelement(ahb_row: pd.Series) -> bool:
+    def _is_dataelement(ahb_row: pd.Series) -> bool:  # type:ignore[type-arg]
         """
         Checks if the given AHB row is a dataelement
         """
@@ -296,7 +296,7 @@ def _is_dataelement(ahb_row: pd.Series) -> bool:
         return False
 
     @staticmethod
-    def _is_just_value_pool_entry(ahb_row: pd.Series) -> bool:
+    def _is_just_value_pool_entry(ahb_row: pd.Series) -> bool:  # type:ignore[type-arg]
         """
         Checks if the given AHB row contains only a value pool entry (w/o Segment (group) and data element)
         """
diff --git a/tox.ini b/tox.ini
index 3b851720..5003ec98 100644
--- a/tox.ini
+++ b/tox.ini
@@ -36,7 +36,7 @@ deps =
     -rrequirements.txt
      -r dev_requirements/requirements-type_check.txt
 commands =
-    mypy --show-error-codes src/kohlrahbi
+    mypy --show-error-codes src/kohlrahbi --strict
     mypy --show-error-codes unittests
 # mypy --show-error-codes unittests # does not work yet, sadly; Some tox/packaging problems
 # add single files (ending with .py) or packages here
diff --git a/unittests/cellparagraph.py b/unittests/cellparagraph.py
index 14376d5c..76be0b50 100644
--- a/unittests/cellparagraph.py
+++ b/unittests/cellparagraph.py
@@ -1,7 +1,7 @@
 from typing import Optional
 
 from attr import define, field
-from docx.shared import Length  # type:ignore[import]
+from docx.shared import Length
 
 
 @define(auto_attribs=True, kw_only=True)
diff --git a/unittests/conftest.py b/unittests/conftest.py
index 9d120388..a30fbcd7 100644
--- a/unittests/conftest.py
+++ b/unittests/conftest.py
@@ -1,5 +1,5 @@
-import docx  # type:ignore[import]
-import pytest  # type:ignore[import]
+import docx
+import pytest
 
 from unittests.cellparagraph import CellParagraph
 
diff --git a/unittests/test_ahb_file_finder.py b/unittests/test_ahb_file_finder.py
index 0fc657e9..3f1f89af 100644
--- a/unittests/test_ahb_file_finder.py
+++ b/unittests/test_ahb_file_finder.py
@@ -1,6 +1,6 @@
 from pathlib import Path
 
-import pytest  # type:ignore[import]
+import pytest
 from maus.edifact import EdifactFormat
 
 from kohlrahbi.docxfilefinder import DocxFileFinder
diff --git a/unittests/test_ahb_sub_table.py b/unittests/test_ahb_sub_table.py
index e5586f98..2e703f43 100644
--- a/unittests/test_ahb_sub_table.py
+++ b/unittests/test_ahb_sub_table.py
@@ -4,8 +4,8 @@
 
 from pathlib import Path
 
-import docx  # type:ignore[import]
-from docx.table import Table  # type:ignore[import]
+import docx
+from docx.table import Table
 
 from kohlrahbi.ahbtable.ahbsubtable import AhbSubTable
 from kohlrahbi.read_functions import get_all_paragraphs_and_tables
diff --git a/unittests/test_ahb_table.py b/unittests/test_ahb_table.py
index 6f8384ab..80066b83 100644
--- a/unittests/test_ahb_table.py
+++ b/unittests/test_ahb_table.py
@@ -1,7 +1,7 @@
 from pathlib import Path
 
 import pandas as pd
-import pytest  # type:ignore[import]
+import pytest
 
 from kohlrahbi.ahbtable.ahbtable import AhbTable
 from kohlrahbi.unfoldedahb import UnfoldedAhb
diff --git a/unittests/test_cells/test_bedingung_cell_parser.py b/unittests/test_cells/test_bedingung_cell_parser.py
index c3a33588..77f3d424 100644
--- a/unittests/test_cells/test_bedingung_cell_parser.py
+++ b/unittests/test_cells/test_bedingung_cell_parser.py
@@ -1,6 +1,6 @@
 import pandas as pd
-import pytest  # type:ignore[import]
-from docx.shared import Twips  # type:ignore[import]
+import pytest
+from docx.shared import Twips
 
 from kohlrahbi.docxtablecells import BedingungCell
 from unittests.cellparagraph import CellParagraph
diff --git a/unittests/test_cells/test_body_cell_parser.py b/unittests/test_cells/test_body_cell_parser.py
index b7bd78e4..3e52de75 100644
--- a/unittests/test_cells/test_body_cell_parser.py
+++ b/unittests/test_cells/test_body_cell_parser.py
@@ -1,6 +1,6 @@
 import pandas as pd
-import pytest  # type:ignore[import]
-from docx.shared import Length, Twips  # type:ignore[import]
+import pytest
+from docx.shared import Length, Twips
 
 from kohlrahbi.docxtablecells import BodyCell
 from unittests.cellparagraph import CellParagraph
diff --git a/unittests/test_cells/test_edifact_struktur_cell_parser.py b/unittests/test_cells/test_edifact_struktur_cell_parser.py
index 3db3e0cd..d3aca3bd 100644
--- a/unittests/test_cells/test_edifact_struktur_cell_parser.py
+++ b/unittests/test_cells/test_edifact_struktur_cell_parser.py
@@ -1,6 +1,6 @@
 import pandas as pd
-import pytest  # type:ignore[import]
-from docx.shared import Twips  # type:ignore[import]
+import pytest
+from docx.shared import Twips
 
 from kohlrahbi.docxtablecells import EdifactStrukturCell
 from unittests.cellparagraph import CellParagraph
diff --git a/unittests/test_check_row_type.py b/unittests/test_check_row_type.py
index c47b4817..3ec82527 100644
--- a/unittests/test_check_row_type.py
+++ b/unittests/test_check_row_type.py
@@ -1,6 +1,6 @@
-import docx  # type:ignore[import]
-import pytest  # type:ignore[import]
-from docx.shared import RGBColor  # type:ignore[import]
+import docx
+import pytest
+from docx.shared import RGBColor
 
 from kohlrahbi.row_type_checker import RowType, get_row_type
 
diff --git a/unittests/test_cli_pruefi.py b/unittests/test_cli_pruefi.py
index 284e3c8c..906d3259 100644
--- a/unittests/test_cli_pruefi.py
+++ b/unittests/test_cli_pruefi.py
@@ -1,7 +1,7 @@
 from pathlib import Path
 from typing import Union
 
-import pytest  # type:ignore[import]
+import pytest
 from click.testing import CliRunner, Result
 
 from kohlrahbi.ahb.command import ahb
diff --git a/unittests/test_conditions_format_file_mapping.py b/unittests/test_conditions_format_file_mapping.py
index ac6b7ca6..cb62f7c6 100644
--- a/unittests/test_conditions_format_file_mapping.py
+++ b/unittests/test_conditions_format_file_mapping.py
@@ -1,4 +1,4 @@
-import pytest  # type:ignore[import]
+import pytest
 from maus.edifact import EdifactFormat
 
 from kohlrahbi.conditions import find_all_files_from_all_pruefis
diff --git a/unittests/test_current_state.py b/unittests/test_current_state.py
index 2ec48e26..596a0416 100644
--- a/unittests/test_current_state.py
+++ b/unittests/test_current_state.py
@@ -8,7 +8,7 @@
 from typing import Union
 
 import pandas as pd
-import pytest  # type:ignore[import]
+import pytest
 from click.testing import CliRunner, Result
 
 from kohlrahbi import cli
diff --git a/unittests/test_docx_extensions.py b/unittests/test_docx_extensions.py
index 09e3f8bb..2620ece9 100644
--- a/unittests/test_docx_extensions.py
+++ b/unittests/test_docx_extensions.py
@@ -2,19 +2,21 @@
 tests all the features the kohlrahbi package provides to process Docx files (by using the docx package)
 """
 
-import pytest  # type:ignore[import]
+from typing import Generator
+
+import pytest
 from _pytest.fixtures import SubRequest  # type:ignore[import]
-from docx import Document  # type:ignore[import]
-from docx.document import Document as DocumentClass  # type:ignore[import]
-from docx.table import Table  # type:ignore[import]
-from docx.text.paragraph import Paragraph  # type:ignore[import]
+from docx import Document
+from docx.document import Document as DocumentClass
+from docx.table import Table
+from docx.text.paragraph import Paragraph
 
 from kohlrahbi.read_functions import get_all_paragraphs_and_tables
 
 
 class TestDocxExtensions:
     @pytest.fixture
-    def create_docx_from_filename(self, request: SubRequest, datafiles) -> DocumentClass:
+    def create_docx_from_filename(self, request: SubRequest, datafiles) -> Generator[DocumentClass, None, None]:
         """a fixture to quickly instantiate a docx.Document from a given docx file name"""
         docx_file_name = request.param
         docx_file_path = datafiles / docx_file_name
diff --git a/unittests/test_input_checks.py b/unittests/test_input_checks.py
index 3fe11de9..1570f7ca 100644
--- a/unittests/test_input_checks.py
+++ b/unittests/test_input_checks.py
@@ -1,4 +1,4 @@
-import pytest  # type:ignore[import]
+import pytest
 
 from kohlrahbi.ahb import get_valid_pruefis
 
diff --git a/unittests/test_read_functions.py b/unittests/test_read_functions.py
index b42d95cb..a5cdf25d 100644
--- a/unittests/test_read_functions.py
+++ b/unittests/test_read_functions.py
@@ -1,9 +1,8 @@
 import json
-import os
 from pathlib import Path
 
-import docx  # type:ignore[import]
-import pytest  # type:ignore[import]
+import docx
+import pytest
 from docx import Document
 from maus.edifact import EdifactFormat, EdifactFormatVersion
 
diff --git a/unittests/test_table_header.py b/unittests/test_table_header.py
index 5ed059d7..b8640d6a 100644
--- a/unittests/test_table_header.py
+++ b/unittests/test_table_header.py
@@ -2,7 +2,7 @@
 Test the table_header module.
 """
 
-import pytest  # type:ignore[import]
+import pytest
 
 from kohlrahbi.table_header import create_mapping_of_tabstop_positions