diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 8f0987f..6afcd21 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -1,6 +1,7 @@
 name: "CodeQL"
 on:
   push:
+    branches: [ main ]
     paths:
       - "src/Picocrypt.go"
       - "src/go.mod"