diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 16b7a309a..2e648e3a3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,6 +5,10 @@ name: build
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint:
     runs-on: ubuntu-18.04
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 625f05079..6d47cef29 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -2,6 +2,10 @@ name: deploy
 
 on: push
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build-n-publish:
     runs-on: ubuntu-18.04