diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a52fdea..013d9af 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -5,9 +5,16 @@ on:
     branches:
       - master
       - dev
+
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#concurrency
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
   GRPCURLV: "1.8.1"
+
 jobs:
   lint:
     name: rustfmt