diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2adfc33..4764c70 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
         python-version: ['3.9', '3.10', '3.11']
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
diff --git a/.github/workflows/deploy-frontend.yml b/.github/workflows/deploy-frontend.yml
index d52d062..0ac6ae3 100644
--- a/.github/workflows/deploy-frontend.yml
+++ b/.github/workflows/deploy-frontend.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Setup Node
         uses: actions/setup-node@v4
diff --git a/.github/workflows/etl-pipeline.yml b/.github/workflows/etl-pipeline.yml
index c07fee8..2ada07b 100644
--- a/.github/workflows/etl-pipeline.yml
+++ b/.github/workflows/etl-pipeline.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/guardrails.yml b/.github/workflows/guardrails.yml
index 67e7659..d75442b 100644
--- a/.github/workflows/guardrails.yml
+++ b/.github/workflows/guardrails.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       # 1. Block secret keys
       - name: Detect secrets
diff --git a/.github/workflows/security-codeql.yml b/.github/workflows/security-codeql.yml
index 31be8aa..78c949f 100644
--- a/.github/workflows/security-codeql.yml
+++ b/.github/workflows/security-codeql.yml
@@ -27,7 +27,7 @@ jobs:
         language: ['javascript', 'python']
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4