diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c6a5042..88859e6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,6 +8,10 @@ on:
   pull_request:
     branches: [master]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   linux-tests:
     runs-on: ubuntu-24.04