diff --git a/.github/workflows/ci-build-proto.yml b/.github/workflows/ci-build-proto.yml
index 519be7dd..160fc201 100644
--- a/.github/workflows/ci-build-proto.yml
+++ b/.github/workflows/ci-build-proto.yml
@@ -40,7 +40,7 @@ jobs:
         sudo mv $BAZEL /usr/local/bin/bazel
 
     - name: Build proto/
-      run: cd proto && bazel build //...
+      run: cd proto && bazel build //... && bazel test //...
 
     - name: Build bazel/example/
       run: cd bazel/example/ && bazel build //...