diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index 9da214f..a2b2b7c 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -28,7 +28,7 @@ jobs:
         run: tests/run
 
   push:
-    if: github.event_name == "push" && github.ref == "refs/heads/master"
+    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
     needs: test
 
     runs-on: ubuntu-latest