diff --git a/.github/workflows/generate.yml b/.github/workflows/generate.yml
index 5f743f2a0..e12dce62c 100644
--- a/.github/workflows/generate.yml
+++ b/.github/workflows/generate.yml
@@ -4,6 +4,9 @@ on:
     branches:
       - master
 
+concurrency: vimdoc-ja-deploy
+  # global concurrency limit access to vim-jp/vimdoc-ja per workflow
+
 jobs:
   generate:
     runs-on: ubuntu-latest
@@ -30,10 +33,6 @@ jobs:
           vim -eu tools/maketags.vim
 
           cd ..
-      - name: Lock mutex
-        uses: shogo82148/actions-mutex@v1
-        with:
-          key: ${{ github.job }}
       - name: Update target
         run: |
           cd target
@@ -56,10 +55,14 @@ jobs:
 
             https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}
           branch: master
-          pull_strategy: 'NO-PULL'
+          pull: 'NO-PULL'
 
   deploy:
     runs-on: ubuntu-latest
+    needs: generate
+      # "deploy" update vimdoc-ja/gh-pages branch
+      # work after "generate" to updated vimdoc-ja/master branch
+      # parallel work conflict vimdoc-ja repo status
     steps:
       - name: checkout master
         uses: actions/checkout@v2
@@ -84,10 +87,6 @@ jobs:
           make html
 
           cd ..
-      - name: Lock mutex
-        uses: shogo82148/actions-mutex@v1
-        with:
-          key: ${{ github.job }}
       - name: Update target
         run: |
           cd target
@@ -108,4 +107,4 @@ jobs:
 
             https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}
           branch: gh-pages
-          pull_strategy: 'NO-PULL'
+          pull: 'NO-PULL'