diff --git a/.github/workflows/Test.yml b/.github/workflows/Test.yml
index 8ce2925..245d410 100644
--- a/.github/workflows/Test.yml
+++ b/.github/workflows/Test.yml
@@ -27,10 +27,22 @@ jobs:
             python -m pip install --upgrade pip
             pip install pytest
             pip install maturin
+        - name: Install cargo-llvm-cov
+          uses: taiki-e/install-action@cargo-llvm-cov
         - name: Build and install wheel
           run: |
+            source <(cargo llvm-cov show-env --export-prefix)
             maturin build --out dist --find-interpreter
             pip install autosar-data --find-links dist
         - name: Test with pytest
           run: |
-            pytest
\ No newline at end of file
+            pytest
+        - name: Collect test coverage data
+          run: |
+            cargo llvm-cov report --lcov --output-path lcov.info
+        - name: Upload coverage reports to Codecov
+          uses: codecov/codecov-action@v3
+          env:
+            CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+          with:
+            files: lcov.info