diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index d0b52e6..eb55c68 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -31,7 +31,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -98,7 +98,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -167,7 +167,7 @@ jobs:
 
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🔐 Log in to Container Registry
         uses: docker/login-action@v3
@@ -206,7 +206,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🗄️ Create database backup
         run: |
@@ -235,7 +235,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🧪 Run smoke tests
         run: |
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bb20cc9..e339afb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -56,7 +56,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -96,7 +96,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -147,7 +147,7 @@ jobs:
 
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -208,7 +208,7 @@ jobs:
 
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -262,7 +262,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
diff --git a/.github/workflows/dependabot-auto-approve.yml b/.github/workflows/dependabot-auto-approve.yml
index 6feaa54..c41a848 100644
--- a/.github/workflows/dependabot-auto-approve.yml
+++ b/.github/workflows/dependabot-auto-approve.yml
@@ -17,7 +17,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         
       - name: Get PR metadata
         id: pr-metadata
diff --git a/.github/workflows/dependabot-monitor.yml b/.github/workflows/dependabot-monitor.yml
index b69f8d3..a65b594 100644
--- a/.github/workflows/dependabot-monitor.yml
+++ b/.github/workflows/dependabot-monitor.yml
@@ -12,7 +12,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         
       - name: Check if merge was successful
         id: merge-check
diff --git a/.github/workflows/security-audit.yml b/.github/workflows/security-audit.yml
index 3c779e7..7339186 100644
--- a/.github/workflows/security-audit.yml
+++ b/.github/workflows/security-audit.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Setup Node.js
       uses: actions/setup-node@v4
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 4bb858a..8442f97 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -21,7 +21,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -56,7 +56,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🔒 Run CodeQL Analysis
         uses: github/codeql-action/init@v3
@@ -76,7 +76,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🔐 Run TruffleHog Secret Scan
         uses: trufflesecurity/trufflehog@main
@@ -93,7 +93,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📦 Setup Node.js
         uses: actions/setup-node@v4
@@ -129,7 +129,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🛡️ Run OWASP Dependency Check
         uses: dependency-check/Dependency-Check_Action@main
@@ -158,7 +158,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🐳 Build Docker image
         working-directory: ./app
@@ -195,7 +195,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 🔒 Check security headers configuration
         working-directory: ./app
@@ -222,7 +222,7 @@ jobs:
     
     steps:
       - name: 📦 Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: 📋 GDPR Compliance Check
         run: |