diff --git a/.github/workflows/check-md-links.yml b/.github/workflows/check-md-links.yml
index a06f669..11e1cb4 100644
--- a/.github/workflows/check-md-links.yml
+++ b/.github/workflows/check-md-links.yml
@@ -6,7 +6,7 @@ jobs:
   markdown-link-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gaurav-nelson/github-action-markdown-link-check@v1
         with:
           check-modified-files-only: 'no'
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f8005e1..4dd2aa8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
     name: on ${{ matrix.platform }} with JDK ${{ matrix.jdk }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up JDK ${{ matrix.jdk }}
         uses: actions/setup-java@v3
         with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index c2349cf..d964a1d 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup Java
         uses: actions/setup-java@v3
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index c537e72..16aca89 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -14,7 +14,7 @@ jobs:
     name: Coverage on Ubuntu
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up JDK 11
         uses: actions/setup-java@v3
         with:
diff --git a/.github/workflows/sync-labels.yml b/.github/workflows/sync-labels.yml
index a0779e7..71cb8fe 100644
--- a/.github/workflows/sync-labels.yml
+++ b/.github/workflows/sync-labels.yml
@@ -12,7 +12,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: micnncim/action-label-syncer@v1.3.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}