diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 12a225f..cacdc70 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ jobs:
     name: Build for Linux
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: subosito/flutter-action@v2
         with:
           channel: 'stable'
@@ -29,7 +29,7 @@ jobs:
     name: Build for Android
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: subosito/flutter-action@v2
         with:
           channel: 'stable'
@@ -58,14 +58,14 @@ jobs:
     concurrency:
       group: ${{ github.workflow }}-${{ github.ref }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: subosito/flutter-action@v2
         with:
           channel: 'stable'
           flutter-version: '3.x'
       - run: flutter config --enable-web
       - run: flutter pub get
-      - run: flutter build web
+      - run: flutter build web --base-href "/release_schedule/"
       - name: Publish to GitHub Pages
         uses: peaceiris/actions-gh-pages@v3
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e7c8f2a..c5f7011 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
         with: