diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index e20856728c..29a78165c0 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -2,7 +2,10 @@ name: "Code scanning - action"
 
 on:
   push:
+    branches: [master, ]
   pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [master]
   schedule:
     - cron: '0 12 * * 2'