diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 31cbd79..2c46eb4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,22 +3,20 @@ on:
   push:
     branches:
       - master
-
-permissions:
-  contents: read
-  pages: write
-  id-token: write
+  pull_request:
 
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v23
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: cachix/install-nix-action@v27
         with:
           github_access_token: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: cachix/cachix-action@v12
+      - uses: cachix/cachix-action@v15
         with:
           name: fcitx5-android
           authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
@@ -27,17 +25,27 @@ jobs:
         run: nix develop --command mkdocs build --site-dir public
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@v3
         with:
+          name: github-pages
           path: public
+          retention-days: 90
 
   deploy:
+    if: github.ref_name == 'master'
+    needs: build
+
+    permissions:
+      pages: write
+      id-token: write
+
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
+
     runs-on: ubuntu-latest
-    needs: build
+
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v1
+        uses: actions/deploy-pages@v4
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
deleted file mode 100644
index 2957f60..0000000
--- a/.github/workflows/pull_request.yml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: Pull Request
-on:
-  pull_request:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - uses: cachix/install-nix-action@v23
-        with:
-          github_access_token: ${{ secrets.GITHUB_TOKEN }}
-
-      - uses: cachix/cachix-action@v12
-        with:
-          name: fcitx5-android
-          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
-
-      - name: Build site
-        run: nix develop --command mkdocs build --site-dir public
-
-      - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
-        with:
-          path: public