diff --git a/.github/workflows/backend-test.yml b/.github/workflows/backend-test.yml
index ba481f2..f65f188 100644
--- a/.github/workflows/backend-test.yml
+++ b/.github/workflows/backend-test.yml
@@ -16,7 +16,7 @@ jobs:
         working-directory: backend
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/docs-check.yml b/.github/workflows/docs-check.yml
index ce13990..48a5861 100644
--- a/.github/workflows/docs-check.yml
+++ b/.github/workflows/docs-check.yml
@@ -14,7 +14,7 @@ jobs:
     name: MkDocs Build (strict)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 16af0fc..dbbe2db 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -15,7 +15,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/frontend-test.yml b/.github/workflows/frontend-test.yml
index e1fefc5..97190c7 100644
--- a/.github/workflows/frontend-test.yml
+++ b/.github/workflows/frontend-test.yml
@@ -16,7 +16,7 @@ jobs:
         working-directory: frontend
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Node.js
         uses: actions/setup-node@v6
diff --git a/.github/workflows/sbom.yml b/.github/workflows/sbom.yml
index 0f30c5b..529dbe5 100644
--- a/.github/workflows/sbom.yml
+++ b/.github/workflows/sbom.yml
@@ -27,7 +27,7 @@ jobs:
     name: Generate Python SBOM
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with:
@@ -53,7 +53,7 @@ jobs:
     name: Generate JavaScript SBOM
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-node@v6
         with:
diff --git a/.github/workflows/security-scan.yml b/.github/workflows/security-scan.yml
index c92d236..fb6302c 100644
--- a/.github/workflows/security-scan.yml
+++ b/.github/workflows/security-scan.yml
@@ -33,7 +33,7 @@ jobs:
     name: Python Dependency Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v6
         with:
@@ -63,7 +63,7 @@ jobs:
     name: JavaScript Dependency Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-node@v6
         with: