diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 978d2b2..fda3cdb 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -7,6 +7,10 @@ on:
       - 'linear/**'
   pull_request:
 
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
+
 jobs:
   rust:
     runs-on: ubuntu-latest