diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index a3575e4..0a70c7a 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -12,6 +12,10 @@ on: [pull_request]
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   dependency-review:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index c38643a..cb51fed 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -8,6 +8,10 @@ on:
   schedule:
     - cron: "0 21 * * 6"
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-24.04
diff --git a/.github/workflows/scorecards.yml b/.github/workflows/scorecards.yml
index 9fab901..f400285 100644
--- a/.github/workflows/scorecards.yml
+++ b/.github/workflows/scorecards.yml
@@ -17,6 +17,10 @@ on:
 # Declare default permissions as read only.
 permissions: read-all
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   analysis:
     name: Scorecard analysis
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
index 9793ed0..88b02d6 100644
--- a/.github/workflows/zizmor.yml
+++ b/.github/workflows/zizmor.yml
@@ -13,6 +13,10 @@ on:
 
 permissions: {}
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   zizmor:
     runs-on: ubuntu-24.04