diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index c95d982..01b8878 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -5,7 +5,7 @@ on:
 
   push:
     branches:
-      - main # Check branch after merge
+      - 2.9.x # Check 2.9.x branch after merge
 
 concurrency:
   # Only run once for latest commit per ref and cancel other (previous) runs.