diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index f004150f..df57a3b0 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -34,6 +34,13 @@ jobs:
           name: dlr-ft
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
       - run: nix build .#wasm-interpreter --print-build-logs
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          verbose: true
+          file: result/lcov-codecov.json
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
       - run: nix build .#report --print-build-logs
       - name: Archive report
         uses: actions/upload-artifact@v4