diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 0cba7a4a..2d0a2f19 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -5,7 +5,6 @@ on:
     branches:
       - master
       - 2201.[0-9]+.x
-      - update4
 
 jobs:
   ubuntu-build: