diff --git a/.github/workflows/backend-test.yml b/.github/workflows/backend-test.yml
index 34384a9..73f50e1 100644
--- a/.github/workflows/backend-test.yml
+++ b/.github/workflows/backend-test.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -143,7 +143,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -184,7 +184,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -231,7 +231,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/ci-orchestration.yml b/.github/workflows/ci-orchestration.yml
index 726577e..6ee2340 100644
--- a/.github/workflows/ci-orchestration.yml
+++ b/.github/workflows/ci-orchestration.yml
@@ -16,7 +16,7 @@ jobs:
       frontend-path-changed: ${{ steps.changes.outputs.frontend }}
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Check path changes
       uses: dorny/paths-filter@v3
diff --git a/.github/workflows/dependabot-automerge.yml b/.github/workflows/dependabot-automerge.yml
index 1f02c5d..9ae2ba2 100644
--- a/.github/workflows/dependabot-automerge.yml
+++ b/.github/workflows/dependabot-automerge.yml
@@ -30,7 +30,7 @@ jobs:
       auto-merge-eligible: ${{ steps.analyze.outputs.auto-merge-eligible }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           fetch-depth: 0
diff --git a/.github/workflows/frontend-test.yml b/.github/workflows/frontend-test.yml
index ddb6f39..0a1d5e2 100644
--- a/.github/workflows/frontend-test.yml
+++ b/.github/workflows/frontend-test.yml
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Setup Node.js
       uses: actions/setup-node@v4
@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Setup Node.js
       uses: actions/setup-node@v4
@@ -93,7 +93,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Setup Node.js
       uses: actions/setup-node@v4
@@ -116,7 +116,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install system dependencies
       run: |
@@ -166,7 +166,7 @@ jobs:
     needs: [format-and-lint, build-and-bundle]
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install system dependencies
       run: |
diff --git a/.github/workflows/integration-test.yml b/.github/workflows/integration-test.yml
index 7e1eef6..97a35b4 100644
--- a/.github/workflows/integration-test.yml
+++ b/.github/workflows/integration-test.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -81,7 +81,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -118,7 +118,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -176,7 +176,7 @@ jobs:
     needs: [command-integration]  # Only run after command tests pass
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/security-audit.yml b/.github/workflows/security-audit.yml
index ec6c479..32ddf32 100644
--- a/.github/workflows/security-audit.yml
+++ b/.github/workflows/security-audit.yml
@@ -20,7 +20,7 @@ jobs:
     
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@master
@@ -100,7 +100,7 @@ jobs:
     
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         uses: actions/setup-node@v4