diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 06b35b84..713ec5db 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,3 +7,9 @@ updates:
       interval: "daily"
     commit-message:
       prefix: "chore(deps)"
+    groups:
+      dependencies:
+        applies-to: version-updates
+        update-types:
+          - "minor"
+          - "patch"
diff --git a/.github/workflows/gh-pages.yaml b/.github/workflows/gh-pages.yaml
index 404ccad7..1664cea9 100644
--- a/.github/workflows/gh-pages.yaml
+++ b/.github/workflows/gh-pages.yaml
@@ -10,21 +10,22 @@ jobs:
   deploy:
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # tag v4.1.4
         with:
           submodules: true
           fetch-depth: 0
 
       - name: Setup Hugo
-        uses: peaceiris/actions-hugo@v3
+        uses: peaceiris/actions-hugo@75d2e84710de30f6ff7268e08f310b60ef14033f # tag v3.0.0
         with:
           hugo-version: 'latest'
+          extended: true
 
       - name: Build
         run: hugo --minify
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v4
+        uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # tag v4.0.0
         if: github.ref == 'refs/heads/main'
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/pr-label-checker.yaml b/.github/workflows/pr-label-checker.yaml
deleted file mode 100644
index aeb50aca..00000000
--- a/.github/workflows/pr-label-checker.yaml
+++ /dev/null
@@ -1,25 +0,0 @@
----
-name: label checker
-
-on:
-  pull_request:
-    types:
-      - closed
-
-jobs:
-  if_merged:
-    if: github.event.pull_request.merged == true
-    runs-on: ubuntu-latest
-    steps:
-    - run: |
-        echo The PR was merged
-        echo ${{ contains(github.event.pull_request.labels.*.name, 'ready-for-review') }}
-  if_labelled:
-    if: |
-      contains(github.event.pull_request.labels.*.name, 'major') ||
-      contains(github.event.pull_request.labels.*.name, 'minor') ||
-      contains(github.event.pull_request.labels.*.name, 'release')
-    runs-on: ubuntu-latest
-    steps:
-    - run: |
-        echo Label present