diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 5e7db4c..fb80380 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -2,7 +2,9 @@ name: "Code scanning - action"
 
 on:
   push:
+    branches: [ master ]
   pull_request:
+    branches: [ master ]
   schedule:
     - cron: '0 18 * * 6'