diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 4283aa1..6420200 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -1,6 +1,6 @@
 name: build
 
-on: push
+on: pull_request
 
 jobs:
   codestyle: