diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 4150d8c..9caaaa2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,38 +1,19 @@
-name: Python CI
+name: Docker CI
 
 on: [ push, pull_request ]
 
 jobs:
-  test:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        python-version: [ 3.8, 3.9, '3.10', '3.11' ]
-        os: [ ubuntu-latest ]
-    defaults:
-      run:
-        shell: bash -el {0}
+  build:
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: extractions/setup-just@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: Install and configure Poetry
-        uses: snok/install-poetry@v1
-        with:
-          version: 1.2.2
-      - name: Install project
-        run:  just install-ci
-      - name: Check formatting
-        run:  just check-fmt
-      - name: Lint
-        run:  just lint
-      - name: Test
-        run:  just test -vv
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
 
-      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+      - name: Build Docker Image
+        uses: docker/build-push-action@v2
         with:
-          file:             ./coverage.xml
-          fail_ci_if_error: false
-          env_vars:         OS,PYTHON
+          context: .
+          push: false
diff --git a/Dockerfile b/Dockerfile
index 2e8e989..a3229b8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,7 +32,7 @@ COPY . /make_prg
 
 RUN poetry run pip install -U pip \
     && poetry install --no-ansi --only main --all-extras \
-    && make_prg --version
+    && make_prg --version && pytest tests
 
 # workaround required for pyinstaller to work
 RUN cp -vr /usr/bin/* /usr/sbin/