diff --git a/.github/workflows/phpmd.yml b/.github/workflows/phpmd.yml
index e84eafcbf..0e8745b2b 100644
--- a/.github/workflows/phpmd.yml
+++ b/.github/workflows/phpmd.yml
@@ -17,10 +17,10 @@ name: PHPMD
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "v6_developer" ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ "master" ]
+    branches: [ "v6_developer" ]
   schedule:
     - cron: '32 2 * * 5'