diff --git a/.github/workflows/build-report.yml b/.github/workflows/build-report.yml
index 4694429..6394ae0 100644
--- a/.github/workflows/build-report.yml
+++ b/.github/workflows/build-report.yml
@@ -4,6 +4,9 @@ on:
     branches: [main]
     paths:
       - "report/**"
+concurrency:
+  group: build-report
+  cancel-in-progress: true
 jobs:
   build_latex:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/deploy-website.yml b/.github/workflows/deploy-website.yml
index 6bb0532..a2a919a 100644
--- a/.github/workflows/deploy-website.yml
+++ b/.github/workflows/deploy-website.yml
@@ -5,6 +5,9 @@ on:
     paths:
       - "strahl-lib/**"
       - "website/**"
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
 jobs:
   build:
     name: Build Docusaurus