diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7ac9c3d..b08b854 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,8 +5,7 @@ on:
     branches:
       - develop
     pull_request:
-      types:
-        - opened
+      branches: [ develop ]
       paths:
         - '**.php'
 permissions: