diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bd9c698..426f06d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/check
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
@@ -26,7 +26,7 @@ jobs:
           - macos-11
           - windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         uses: actions-rs/cargo@v1
         with:
@@ -41,7 +41,7 @@ jobs:
           - macos-11
           - windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Test
         uses: actions-rs/cargo@v1
         with:
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index a17fc04..afbf24d 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Install mdbook plugins
         uses: drmingdrmer/mdbook-full@main