diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d672a91..abf15c9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,7 @@ jobs:
           - stable
     steps:
       - name: Clone
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Cache
         uses: actions/cache@v2
         with:
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 04d716f..449074e 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Setup mdBook
         uses: peaceiris/actions-mdbook@v1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a812cb1..9d10555 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -54,7 +54,7 @@ jobs:
           profile: minimal
           override: true
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Cargo build
         uses: actions-rs/cargo@v1
         with: