diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index faa62e5..7a257e3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,22 +1,22 @@
-name: PHP Composer
+name: Build
 
 on:
-  push:
-    branches: [ master, v1.1, build-test ]
   schedule:
-    - cron:  '5 15 1,31 * *'
+    - cron:  '0 15 31 12 *'
+  workflow_dispatch:
+  push:
+    branches: [ build-test ]
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Cache Composer packages
         id: composer-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: vendor
           key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
@@ -27,11 +27,11 @@ jobs:
         run: composer install --prefer-dist --no-progress
 
       - name: build api files
+        env:
+          TZ: 'Asia/Tokyo'
         run: composer build
 
       - name: commit and push
-        env:
-          TZ: 'Asia/Tokyo'
         run: |
           git add -N .
           if ! git diff --exit-code --quiet
@@ -39,6 +39,6 @@ jobs:
             git config user.email "matsuoshi@gmail.com"
             git config user.name "from GitHub Actions"
             git add --all
-            git commit -m "$(date +'%Y-%m-%d %H:%M:%S')"
+            git commit -m "build"
             git push
           fi
diff --git a/.github/workflows/touch.yml b/.github/workflows/touch.yml
new file mode 100644
index 0000000..9f80891
--- /dev/null
+++ b/.github/workflows/touch.yml
@@ -0,0 +1,42 @@
+name: touch
+
+on:
+  schedule:
+    - cron:  '0 3 1 * *'
+  workflow_dispatch:
+
+jobs:
+  touch:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Cache Composer packages
+        id: composer-cache
+        uses: actions/cache@v4
+        with:
+          path: vendor
+          key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-php-
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress
+
+      - name: touch
+        env:
+          TZ: 'Asia/Tokyo'
+        run: composer touch
+
+      - name: commit and push
+        run: |
+          git add -N .
+          if ! git diff --exit-code --quiet
+          then
+            git config user.email "matsuoshi@gmail.com"
+            git config user.name "from GitHub Actions"
+            git add --all
+            git commit -m "touch"
+            git push
+          fi
diff --git a/app/holidaysJP.php b/app/holidaysJP.php
index b353864..8b6268e 100644
--- a/app/holidaysJP.php
+++ b/app/holidaysJP.php
@@ -45,8 +45,6 @@ public function generate()
         foreach ($yearly as $year => $a) {
             $this->generate_api_file($a, $year);
         }
-
-        $this->updateCheckedFile();
     }
 
     /**
@@ -212,10 +210,4 @@ protected function output_csv_file($filename, $data)
         }
         fclose($fp);
     }
-
-    protected function updateCheckedFile()
-    {
-        $checkedFile = self::DIST . '/checked_at.txt';
-        file_put_contents($checkedFile, date('Y-m-d H:i:s'));
-    }
 }
diff --git a/composer.json b/composer.json
index c3fb47a..48b5fa1 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,8 @@
         "phpunit/phpunit": "^9.5"
     },
     "scripts": {
-        "build": "php main.php",
+        "build": "php main.php && composer touch",
+        "touch": "date '+%F %T' > docs/v1/checked_at.txt",
         "test": "phpunit"
     }
 }