--- a/.github/workflows/ci-develop.yml
+++ b/.github/workflows/ci-develop.yml
@@ -2,7 +2,7 @@
 
 on:
   pull_request:
-    branches: [ develop ]
+    branches: [ 'develop' ]
     types: [ opened, reopened, synchronize, ready_for_review ]
 
 concurrency:
--- a/.github/workflows/ci-master.yml
+++ b/.github/workflows/ci-master.yml
@@ -2,7 +2,7 @@
 
 on:
   pull_request:
-    branches: [ master ]
+    branches: [ 'master' ]
     types: [ opened, reopened, synchronize, ready_for_review ]
 
 concurrency: