diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index a6d4e276..78bff057 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -19,6 +19,10 @@ on:
   schedule:
     - cron: '33 17 * * 6'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   analyze:
     name: Analyze (${{ matrix.language }})
diff --git a/.github/workflows/debian.yml b/.github/workflows/debian.yml
index b2669884..800ce102 100644
--- a/.github/workflows/debian.yml
+++ b/.github/workflows/debian.yml
@@ -16,6 +16,10 @@ on:
 permissions:
   contents: write
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-24.04
diff --git a/.github/workflows/homebrew.yml b/.github/workflows/homebrew.yml
index cb90d8c7..10805ba1 100644
--- a/.github/workflows/homebrew.yml
+++ b/.github/workflows/homebrew.yml
@@ -16,6 +16,10 @@ on:
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build-and-test:
     strategy:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 180360ff..45a6a577 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -4,6 +4,10 @@ on:
   workflow_dispatch:
   push:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   UV_NO_SOURCES: "1"
   PYTHONPATH: ${{ github.workspace }}/abxpkg:${{ github.workspace }}/abx-plugins:${{ github.workspace }}/abx-dl
diff --git a/.github/workflows/release-runner.yml b/.github/workflows/release-runner.yml
index 5f4681a5..81da9e6e 100644
--- a/.github/workflows/release-runner.yml
+++ b/.github/workflows/release-runner.yml
@@ -10,6 +10,10 @@ permissions:
   contents: write
   id-token: write
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   release-state:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c66e204d..a16fba1b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,6 +18,10 @@ permissions:
   packages: write
   id-token: write
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   pip:
     name: Publish to PyPI
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 88c058c8..22657f9f 100755
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,6 +1,10 @@
 name: Run tests
 on: [push]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   DOCKER_IMAGE: archivebox-ci
   PYTHONIOENCODING: utf-8