diff --git a/.github/workflows/ci-dockerfile.yml b/.github/workflows/ci-dockerfile.yml
index ee2e78f6..4bc2247d 100644
--- a/.github/workflows/ci-dockerfile.yml
+++ b/.github/workflows/ci-dockerfile.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: "ubuntu-22.04"
 
     steps:
-      - uses: "actions/checkout@v3"
+      - uses: "actions/checkout@v4"
 
       - name: "Lint Dockerfile"
         uses: "hadolint/hadolint-action@v3.1.0"
diff --git a/.github/workflows/ci-shell-scripts.yml b/.github/workflows/ci-shell-scripts.yml
index e3b4fbf8..58652872 100644
--- a/.github/workflows/ci-shell-scripts.yml
+++ b/.github/workflows/ci-shell-scripts.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v3"
+        uses: "actions/checkout@v4"
 
       - name: "Lint shell scripts with ShellCheck"
         uses: "ludeeus/action-shellcheck@2.0.0"
diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index ce0e6e2f..5c40277e 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -56,7 +56,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -100,7 +100,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -139,7 +139,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"