diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index 5a3c605e8..f6fc20bb6 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -61,8 +61,8 @@ jobs:
             cached-pdf-files-
           enableCrossOsArchive: true
 
-      - name: Run unit tests
-        run: npx gulp unittest --headless
+      - name: Run unit tests with code coverage
+        run: npx gulp unittest --headless --coverage --coverage-output build/coverage/unit
 
       - name: Save cached PDF files
         uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
@@ -70,3 +70,13 @@ jobs:
           path: test/pdfs/*.pdf
           key: cached-pdf-files-${{ hashFiles('test/pdfs/*.pdf') }}
           enableCrossOsArchive: true
+
+      - name: Upload results to Codecov
+        uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6.0.0
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: true
+          files: ./build/coverage/unit/lcov.info
+          flags: unittest
+          name: codecov-umbrella
+          verbose: true