diff --git a/.gitea/workflows/pr.yml b/.gitea/workflows/pr.yml
index f994815..e7b93c2 100644
--- a/.gitea/workflows/pr.yml
+++ b/.gitea/workflows/pr.yml
@@ -5,6 +5,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   check:
     name: Check
diff --git a/.gitea/workflows/rust.yml b/.gitea/workflows/rust.yml
index c8a0d72..bb8d38d 100644
--- a/.gitea/workflows/rust.yml
+++ b/.gitea/workflows/rust.yml
@@ -5,6 +5,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   check:
     name: Check