diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index 5511136..a9ce0cd 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions-rs/audit-check@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/clippy.yml b/.github/workflows/clippy.yml
index e8f7b70..dafb9ea 100644
--- a/.github/workflows/clippy.yml
+++ b/.github/workflows/clippy.yml
@@ -8,7 +8,7 @@ jobs:
   clippy_check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: rustup component add clippy
       - uses: actions-rs/clippy-check@v1
         with:
diff --git a/.github/workflows/post-release.yml b/.github/workflows/post-release.yml
index 79f449f..9e9c919 100644
--- a/.github/workflows/post-release.yml
+++ b/.github/workflows/post-release.yml
@@ -9,7 +9,7 @@ jobs:
     name: Update changelog
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: main
       - uses: rhysd/changelog-from-release/action@v3