diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 4c43266..bffe2ff 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -6,6 +6,10 @@ on:
   pull_request:
     branches: [ master ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
 jobs:
 
   windows: