diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 72499e3..0a93fe5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,6 +11,9 @@ on:
 jobs:
   build:
     if: github.ref == 'refs/heads/main' || contains(github.event.head_commit.message, '--do-build')
+    concurrency:
+      group: build-${{ github.ref }}
+      cancel-in-progress: true
     uses: ./.github/workflows/build.yml
     secrets:
       DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
@@ -18,6 +21,9 @@ jobs:
 
   test:
     needs: build
+    concurrency:
+      group: test-${{ github.ref }}
+      cancel-in-progress: true
     uses: ./.github/workflows/test.yml
     secrets:
       DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
@@ -26,6 +32,9 @@ jobs:
   publish:
     needs: test
     if: github.ref == 'refs/heads/main'
+    concurrency:
+      group: publish-${{ github.ref }}
+      cancel-in-progress: true
     uses: ./.github/workflows/publish.yml
     secrets:
       DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}