diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 205d6e3b..2d58e1b0 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -33,6 +33,10 @@ on:
     - 'src/**'
     - 'stack.yaml'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     if: (github.event_name != 'pull_request' && ! github.event.pull_request.head.repo.fork) || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork)
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index a13ed11e..5e7d737c 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -30,6 +30,10 @@ on:
     - 'README.md'
     - '*.yaml'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     if: (github.event_name != 'pull_request' && ! github.event.pull_request.head.repo.fork) || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork)
diff --git a/.github/workflows/stack-nix.yml b/.github/workflows/stack-nix.yml
index 28f1aafe..dc722355 100644
--- a/.github/workflows/stack-nix.yml
+++ b/.github/workflows/stack-nix.yml
@@ -34,6 +34,10 @@ on:
     - 'README.md'
     - 'hie.yaml'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   linux:
     if: (github.event_name != 'pull_request' && ! github.event.pull_request.head.repo.fork) || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork)
diff --git a/.github/workflows/stack.yml b/.github/workflows/stack.yml
index e23d5a3d..9fab136a 100644
--- a/.github/workflows/stack.yml
+++ b/.github/workflows/stack.yml
@@ -32,6 +32,10 @@ on:
     - 'README.md'
     - 'hie.yaml'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   linux:
     if: (github.event_name != 'pull_request' && ! github.event.pull_request.head.repo.fork) || (github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork)