diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 063df4d84..d049dbd7d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -86,6 +86,13 @@ jobs:
         run: |
           make
 
+      - name: Upload code coverage
+        if: matrix.run_long_tests
+        uses: codecov/codecov-action@v2
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: coverage.txt
+
   release:
     name: release
     needs: build
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 000000000..ec78c1eef
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,7 @@
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 0%
+        if_ci_failed: error