diff --git a/.github/workflows/pr_quality.yml b/.github/workflows/pr_quality.yml
index 5fa8cda3..5a850bea 100644
--- a/.github/workflows/pr_quality.yml
+++ b/.github/workflows/pr_quality.yml
@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 jobs:
   check_code_quality:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/pr_tests.yml b/.github/workflows/pr_tests.yml
index 9dbbe4a4..1208a0d2 100644
--- a/.github/workflows/pr_tests.yml
+++ b/.github/workflows/pr_tests.yml
@@ -5,6 +5,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
 env:
   HF_HOME: /mnt/cache
   OMP_NUM_THREADS: 8