diff --git a/.github/workflows/static-analysis.yaml b/.github/workflows/static-analysis.yaml
index 0975060..79c8e89 100644
--- a/.github/workflows/static-analysis.yaml
+++ b/.github/workflows/static-analysis.yaml
@@ -1,6 +1,10 @@
 name: Static analysis
 
-on: [ push, pull_request ]
+on:
+    push:
+        branches: [ main ]
+    pull_request:
+        branches: [ main ]
 
 jobs:
     phpstan: