diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c73f580..73922f5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -6,6 +6,10 @@ on:
       - master
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     name: Build Docker Image for Unreal Engine ${{ matrix.unreal.version }}