diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dab07e5cb762cf9cc68b54dcab71299e88011a84..c1db55cfea5e4f97f4898347b61af1e717acae28 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,6 +12,10 @@ env:
   RUSTFLAGS: -Dwarnings
   RUST_BACKTRACE: 1
 
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   rustfmt:
     name: rustfmt