diff --git a/.github/workflows/dotnetcore.yml b/.github/workflows/dotnetcore.yml
index b4656b8..51524a5 100644
--- a/.github/workflows/dotnetcore.yml
+++ b/.github/workflows/dotnetcore.yml
@@ -1,6 +1,9 @@
 name: .NET Core
 
-on: [push, pull_request]
+on:
+  push:
+  pull_request:
+    branches: master
 
 jobs:
   build:
@@ -17,4 +20,4 @@ jobs:
         with:
           dotnet-version: 3.1.100
       - name: Build with dotnet
-        run: dotnet build -c Release
\ No newline at end of file
+        run: dotnet build -c Release