diff --git a/.github/workflows/changelog.yml b/.github/workflows/changelog.yml
index 31131d614c8..d127a9bfaf3 100644
--- a/.github/workflows/changelog.yml
+++ b/.github/workflows/changelog.yml
@@ -4,6 +4,8 @@ on:
   pull_request:
     # should also be re-run when changing labels
     types: [opened, reopened, labeled, unlabeled, synchronize]
+    branches:
+      - 'main'
 
 env:
   FRAGMENT_NAME_PREFIX: "docs/changes/${{ github.event.number }}"