diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 18dabcecdd..42e872be34 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,6 +6,10 @@ on:
       - "dependabot/**"
   pull_request:
 
+concurrency:
+  group: ${{ github.ref }}-${{ github.workflow }}-${{ github.event_name }}${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) && format('-{0}', github.sha) || '' }}
+  cancel-in-progress: true
+
 jobs:
   Windows:
     name: 'Windows (${{ matrix.python }}, ${{ matrix.arch }}${{ matrix.extra_name }})'