diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index e12e70424..f80762d8f 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -1,7 +1,9 @@
 name: Continuous Integration
 on:
   # branches pushed by collaborators
-  push: {}
+  push:
+    branches:
+      - master
   # pull request from non-collaborators
   pull_request: {}
   # nightly