diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index 2aaf17617..4942f3564 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -4,6 +4,7 @@ on:
   pull_request:
     branches:
       - main
+      - 1.x
   workflow_dispatch:
 
 jobs: