diff --git a/.github/workflows/check-pull-request.yml b/.github/workflows/check-pull-request.yml
index f736cdd..5379ca8 100644
--- a/.github/workflows/check-pull-request.yml
+++ b/.github/workflows/check-pull-request.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: "Checkout Repository"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: "Dependency Review"
         uses: actions/dependency-review-action@v3
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 8a34e5e..b8f34a0 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/update-github-pages.yml b/.github/workflows/update-github-pages.yml
index 012ef63..24b03c4 100644
--- a/.github/workflows/update-github-pages.yml
+++ b/.github/workflows/update-github-pages.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
           ref: gh-pages