diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index e837d4a..11bc11d 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -9,6 +9,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   matrix-builder:
     runs-on: ubuntu-24.04
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 10e5e1c..895f4f3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -3,6 +3,10 @@ name: Test Docker Images
 on:
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   matrix-builder:
     runs-on: ubuntu-24.04