diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ed6f4872..eb644e97 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,6 +2,7 @@ name: Build
 
 on:
   push:
+    branches: master
   pull_request:
   release:
     types:
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index ce727018..515f19fe 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -3,10 +3,14 @@
 trigger:
   branches:
     include:
-    - '*'
+    - 'master'
   tags:
     include:
     - '*'
+pr:
+  branches:
+    include:
+    - '*'
 
 variables:
   # Disable the .NET logo in the console output.