diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 36ad4454..96428f5e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -66,7 +66,7 @@ jobs:
           - v1.25.3
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -94,7 +94,7 @@ jobs:
           - v1.25.3
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 8180ac45..b145f0ed 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/sync-readme.yaml b/.github/workflows/sync-readme.yaml
index 3d63a3c1..71b174f6 100644
--- a/.github/workflows/sync-readme.yaml
+++ b/.github/workflows/sync-readme.yaml
@@ -12,14 +12,14 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: copy README.md
         run: |
           cp -f README.md ${{ runner.temp }}/README.md
 
       - name: Checkout gh-pages
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: gh-pages