diff --git a/.github/workflows/branch-deploy.yml b/.github/workflows/branch-deploy.yml
index e3d1af9..b922b1e 100644
--- a/.github/workflows/branch-deploy.yml
+++ b/.github/workflows/branch-deploy.yml
@@ -74,7 +74,7 @@ jobs:
       # Checkout repository based on the ref provided by the branch-deploy step.
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ needs.start.outputs.ref }}
 
diff --git a/.github/workflows/continuous-delivery.yml b/.github/workflows/continuous-delivery.yml
index 876ef41..332b490 100644
--- a/.github/workflows/continuous-delivery.yml
+++ b/.github/workflows/continuous-delivery.yml
@@ -23,7 +23,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         id: setup-node
diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index ca54085..a1fd5e9 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -24,7 +24,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         id: setup-node
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index ab03d21..74d911b 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -37,7 +37,7 @@ jobs:
     steps:
       - name: Checkout
         id: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         id: setup-node