diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index f9804fc..e86f96b 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -26,14 +26,11 @@ jobs:
       - name: Set timezone
         run: sudo timedatectl set-timezone Europe/Vienna
 
-      - name: Install project deps
-        run: uv pip install .[dev]
-
       - name: Run pre-commit with prek
-        run: uv run prek run -a
+        run: uv run --dev prek run -a
 
       - name: Test with pytest
-        run: uv run pytest
+        run: uv run --dev pytest
 
       # integration tests for DetectMateService
       - name: Checkout DetectMateService
@@ -42,13 +39,16 @@ jobs:
           repository: ait-detectmate/DetectMateService
           path: DetectMateService
 
-      - name: Install DetectMateService (using local DetectMateLibrary)
+      - name: Prepare DetectMateService (using local DetectMateLibrary)
         working-directory: DetectMateService
         run: |
           # remove the git-based dependency so we don't override the local lib
           sed -i '/detectmatelibrary @ git+/d' pyproject.toml
-          uv pip install .[dev]
+
+      - name: Prepare packages
+        working-directory: DetectMateService
+        run: uv pip install .
 
       - name: Run DetectMateService library integration tests
         working-directory: DetectMateService
-        run: uv run pytest tests/library_integration
+        run: pytest tests/library_integration
diff --git a/pyproject.toml b/pyproject.toml
index 47c8bde..286ccda 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ dependencies = [
     "kafka-python>=2.3.0",
 ]
 
-[project.optional-dependencies]
+[dependency-groups]
 # add dependencies in this section with: uv add --optional dev <package>
 # install with all the dev dependencies:  uv pip install -e .[dev]
 dev = [