diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 130c5d7..b291403 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -3,7 +3,7 @@ name: build and test
 on:
   pull_request:
     branches:
-      - "main"
+      - "master"
 
 env:
   AWS_REGION: ap-southeast-2