diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index ad0971a..9a56174 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -10,15 +10,14 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9']
         os: [macos-latest, ubuntu-latest, windows-latest]
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.x
+      uses: actions/setup-python@v4
       with:
-        python-version: ${{ matrix.python-version }}
+        python-version: '3.x'
     - name: Install fftw3 libs (Linux)
       if: runner.os == 'Linux'
       run: |
diff --git a/.github/workflows/deploy_pypi.yml b/.github/workflows/deploy_pypi.yml
index 9087624..79edef3 100644
--- a/.github/workflows/deploy_pypi.yml
+++ b/.github/workflows/deploy_pypi.yml
@@ -10,11 +10,11 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
-        python-version: 3.8
+        python-version: '3.x'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/CHANGELOG b/CHANGELOG
index 5a89189..ee5e58e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+0.9.2
+ - ci: python build version changed to latest minor version
+ - ref: update unwrap arg name from seed to rng
 0.9.1
  - setup: bump qpretrieve from 0.2.6 to 0.2.8
 0.9.0
diff --git a/qpimage/core.py b/qpimage/core.py
index 5902e8d..b56c310 100644
--- a/qpimage/core.py
+++ b/qpimage/core.py
@@ -362,10 +362,10 @@ def _get_amp_pha(self, data, which_data, bg_data=None, proc_phase=True):
                 pham = pha.copy()
                 pham[nanmask] = 0
                 pham = np.ma.masked_array(pham, mask=nanmask)
-                pha = unwrap_phase(pham, seed=47)
+                pha = unwrap_phase(pham, rng=47)
                 pha[nanmask] = np.nan
             else:
-                pha = unwrap_phase(pha, seed=47)
+                pha = unwrap_phase(pha, rng=47)
             # remove 2PI offsets that might be present in the border phase
             border = np.concatenate((pha[0, :],
                                      pha[-1, :],
diff --git a/setup.py b/setup.py
index 3691061..ba5ee37 100644
--- a/setup.py
+++ b/setup.py
@@ -29,10 +29,10 @@
         "nrefocus[FFTW]>=0.4.3",  # Refocus class
         "numpy>=1.9.0",
         "qpretrieve[FFTW]>=0.2.8",
-        "scikit-image>=0.11.0",
+        "scikit-image>=0.21.0",
         "scipy>=0.18.0",
         ],
-    python_requires='>=3.6, <4',
+    python_requires='>=3.8, <4',
     keywords=["digital holographic microscopy",
               "optics",
               "quantitative phase imaging",
diff --git a/tests/test_series.py b/tests/test_series.py
index 5d5ef69..d49b266 100644
--- a/tests/test_series.py
+++ b/tests/test_series.py
@@ -168,7 +168,9 @@ def test_series_hdf5_hardlink_bg():
 
 def test_series_meta():
     h5file = pathlib.Path(__file__).parent / "data" / "bg_tilt.h5"
-    with pytest.raises((OSError, RuntimeError)):
+    # We have no write intent on the file, so we cannot modify
+    # the metadata.
+    with pytest.raises((OSError, RuntimeError, KeyError)):
         qpimage.QPImage(h5file=h5file,
                         meta_data={"wavelength": 333e-9},
                         h5mode="r")