diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52ffe29c1..c940651dd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout current branch
-        uses: actions/checkout@v3.0.0
+        uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 0
       - name: Setup Scala and Java
@@ -40,7 +40,7 @@ jobs:
         java: ['adopt@1.8', 'adopt@1.11']
         scala: ['2.12.17', '2.13.8', '3.2.1']
     steps:
-    - uses: actions/checkout@v3.0.0
+    - uses: actions/checkout@v4.0.0
       with:
         fetch-depth: 0
     - uses: olafurpg/setup-scala@v13
@@ -57,7 +57,7 @@ jobs:
     needs: [build,lint]
     if: github.event_name != 'pull_request'
     steps:
-      - uses: actions/checkout@v3.0.0
+      - uses: actions/checkout@v4.0.0
         with:
           fetch-depth: 0
       - uses: olafurpg/setup-scala@v13
diff --git a/.github/workflows/site.yml b/.github/workflows/site.yml
index 48132cf72..3603497e9 100644
--- a/.github/workflows/site.yml
+++ b/.github/workflows/site.yml
@@ -18,7 +18,7 @@ jobs:
     if: ${{ github.event_name == 'pull_request' }}
     steps:
     - name: Git Checkout
-      uses: actions/checkout@v3.3.0
+      uses: actions/checkout@v4.0.0
       with:
         fetch-depth: '0'
     - name: Setup Scala
@@ -41,7 +41,7 @@ jobs:
     if: ${{ ((github.event_name == 'release') && (github.event.action == 'published')) || (github.event_name == 'workflow_dispatch') }}
     steps:
     - name: Git Checkout
-      uses: actions/checkout@v3.3.0
+      uses: actions/checkout@v4.0.0
       with:
         fetch-depth: '0'
     - name: Setup Scala
@@ -65,7 +65,7 @@ jobs:
     if: ${{ (github.event_name == 'push') || ((github.event_name == 'release') && (github.event.action == 'published')) }}
     steps:
     - name: Git Checkout
-      uses: actions/checkout@v3.3.0
+      uses: actions/checkout@v4.0.0
       with:
         ref: ${{ github.head_ref }}
         fetch-depth: '0'