diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2ca65e8..2b724f9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,7 +25,7 @@ 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/bundle-size.yml b/.github/workflows/bundle-size.yml
index 33a51f3..35deef5 100644
--- a/.github/workflows/bundle-size.yml
+++ b/.github/workflows/bundle-size.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout PR branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -61,7 +61,7 @@ jobs:
           cp -r dist /tmp/pr-build/
 
       - name: Checkout base branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.base_ref }}
           clean: false
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7a906ea..5690e95 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -34,7 +34,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -64,7 +64,7 @@ jobs:
 
     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:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -115,7 +115,7 @@ 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/codeql.yml b/.github/workflows/codeql.yml
index 6cdb2f4..a7ec51a 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 95ec26e..14758a6 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0  # Required for coverage comparison
 
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index a8ef402..17a081b 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Dependency Review
         uses: actions/dependency-review-action@v4
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 6665367..61a38a8 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 2
 
@@ -55,7 +55,7 @@ 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/pr-labeler.yml b/.github/workflows/pr-labeler.yml
index 9571b7b..90eefd3 100644
--- a/.github/workflows/pr-labeler.yml
+++ b/.github/workflows/pr-labeler.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Auto-label PR
         uses: actions/labeler@v5
diff --git a/.github/workflows/release-automation.yml b/.github/workflows/release-automation.yml
index 2073d70..513f82c 100644
--- a/.github/workflows/release-automation.yml
+++ b/.github/workflows/release-automation.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0  # Fetch all history for changelog generation
 
@@ -121,7 +121,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup Node.js
         uses: actions/setup-node@v4