diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e3d2c40..9722a6f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,10 +7,10 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
         with:
           profile: default
           toolchain: stable
@@ -49,7 +49,7 @@ jobs:
         run: linkchecker doc
       - name: Deploy webpage
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: doc