diff --git a/.github/workflows/CodeQL.yml b/.github/workflows/CodeQL.yml
index e95a540..c759c61 100644
--- a/.github/workflows/CodeQL.yml
+++ b/.github/workflows/CodeQL.yml
@@ -1,6 +1,12 @@
 name: CodeQL
 
-on: [push, pull_request]
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: '28 17 * * 3'
 
 env:
   CODEQL_ENABLE_EXPERIMENTAL_FEATURES_SWIFT: true