diff --git a/.github/workflows/blank.yml b/.github/workflows/blank.yml
deleted file mode 100644
index 04668d4..0000000
--- a/.github/workflows/blank.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: github pages
-
-on:
-  push:
-    branches:
-      - master
-
-jobs:
-  build-deploy:
-    runs-on: ubuntu-18.04
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Setup mdBook
-        uses: peaceiris/actions-mdbook@v1
-        with:
-          mdbook-version: 'latest'
-
-      - run: mdbook build
-
-      - name: Deploy
-        uses: peaceiris/actions-gh-pages@v2
-        env:
-          ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
-          PUBLISH_BRANCH: gh-pages
-          PUBLISH_DIR: ./book