diff --git a/.github/workflows/dotnetcore.yml b/.github/workflows/dotnetcore.yml
index b72c6aa..fc5efc5 100644
--- a/.github/workflows/dotnetcore.yml
+++ b/.github/workflows/dotnetcore.yml
@@ -1,6 +1,6 @@
 name: .NET Core
 
-on: [push]
+on: [pull_request]
 
 jobs:
   build: