diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 492c977bf..b841dee8d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -84,7 +84,7 @@ jobs:
 
   # build and push image to docker hub.
   build-docker-image:
-    if: github.event_name == "push" && (github.ref == "refs/heads/master" || github.ref == "refs/heads/dev" || github.ref == "refs/tags/ng-*")
+    if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/dev' || github.ref == 'refs/tags/ng-*')
     runs-on: ubuntu-latest
     needs: tests
     steps: