diff --git a/.github/workflows/backend-ci.yml b/.github/workflows/backend-ci.yml
index b071bd37..e9d9d5a4 100644
--- a/.github/workflows/backend-ci.yml
+++ b/.github/workflows/backend-ci.yml
@@ -21,4 +21,11 @@ jobs:
           shell: bash -l {0}
           run: |
             cd chartlets.py 
-            pytest
+            pytest --cov=chartlets.py --cov-report=xml
+
+        - name: Upload coverage reports to Codecov
+          uses: codecov/codecov-action@v4
+          with:
+            directory: chartlets.py/
+            verbose: true
+            token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.github/workflows/frontend-ci.yml b/.github/workflows/frontend-ci.yml
index 001a91e6..e0f714d2 100644
--- a/.github/workflows/frontend-ci.yml
+++ b/.github/workflows/frontend-ci.yml
@@ -32,6 +32,18 @@ jobs:
           cd chartlets.js/packages/lib  
           npm run test
 
+      - name: Lib coverage
+        run: |
+          cd chartlets.js/packages/lib  
+          npm run coverage
+
+      - name: Upload coverage reports for lib to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          directory: chartlets.js/packages/lib/
+          verbose: true
+          token: ${{ secrets.CODECOV_TOKEN }}
+
       - name: Lib build
         run: |
           cd chartlets.js/packages/lib