diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2fceb14..ec61a02 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,6 +28,13 @@ jobs:
         run: |
           bash ./test.sh
 
+      - name: Upload to codecov
+        uses: codecov/codecov-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage.txt
+          fail_ci_if_error: true
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1
         with:
diff --git a/test.sh b/test.sh
index ad5cf68..cb59e60 100755
--- a/test.sh
+++ b/test.sh
@@ -4,7 +4,7 @@ set -e
 echo "" > coverage.txt
 
 for d in $(go list ./... | grep -v vendor); do
-    go test $d
+    go test -coverprofile=profile.out -covermode=atomic $d
     if [ -f profile.out ]; then
         cat profile.out | grep -v "_mock.go" >> coverage.txt
         rm profile.out