diff --git a/.github/workflows/cw-check.yml b/.github/workflows/cw-check.yml
index 5fed7bce1..e86cc0768 100644
--- a/.github/workflows/cw-check.yml
+++ b/.github/workflows/cw-check.yml
@@ -21,6 +21,10 @@ on:
       - "release/*"
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ !startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/main' }}
+
 jobs:
   cw-check:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/no-std.yml b/.github/workflows/no-std.yml
index 6e267175f..c2b06172e 100644
--- a/.github/workflows/no-std.yml
+++ b/.github/workflows/no-std.yml
@@ -21,6 +21,10 @@ on:
       - "release/*"
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ !startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/main' }}
+
 jobs:
   check-no-std-panic-conflict:
     name: Check no_std panic conflict