diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d1f9d0e..17a7e63 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,11 +49,8 @@ jobs:
 
   lint:
     runs-on: ubuntu-latest
-    container:
-      image: ghcr.io/thombashi/python-ci:3.11
-    permissions: read-all
     concurrency:
-      group: ${{ github.event_name }}-${{ github.workflow }}-${{ github.ref_name }}-docs
+      group: ${{ github.event_name }}-${{ github.workflow }}-${{ github.ref_name }}-lint
       cancel-in-progress: true
     timeout-minutes: 20