diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a57e756..2c58e98 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,16 +12,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           # Pinned to match backend/Dockerfile's base image patch version
           python-version: '3.11.15'
       
       - name: Install uv
-        uses: astral-sh/setup-uv@v3
+        uses: astral-sh/setup-uv@v7
         with:
           # Pinned to match backend/Dockerfile; upgrade deliberately via PR
           version: "0.11.21"
@@ -55,15 +55,15 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Setup pnpm
-        uses: pnpm/action-setup@v3
+        uses: pnpm/action-setup@v6
         with:
           version: "10.34.3"
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '22'
           cache: 'pnpm'
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 1807add..6cb0051 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -33,16 +33,16 @@ jobs:
     name: Test Backend
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           # Pinned to match backend/Dockerfile's base image patch version
           python-version: '3.11.15'
       
       - name: Install uv
-        uses: astral-sh/setup-uv@v3
+        uses: astral-sh/setup-uv@v7
         with:
           # Pinned to match backend/Dockerfile; upgrade deliberately via PR
           version: "0.11.21"
@@ -68,14 +68,14 @@ jobs:
     name: Test Frontend
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
-      - uses: pnpm/action-setup@v2
+      - uses: pnpm/action-setup@v6
         with:
           version: "10.34.3"
       
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '22'
           cache: 'pnpm'
@@ -108,10 +108,10 @@ jobs:
     if: github.ref == 'refs/heads/main'
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v4
+        uses: aws-actions/configure-aws-credentials@v6
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -252,21 +252,21 @@ jobs:
     if: github.ref == 'refs/heads/main'
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       
       - name: Configure AWS credentials
-        uses: aws-actions/configure-aws-credentials@v4
+        uses: aws-actions/configure-aws-credentials@v6
         with:
           aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
           aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
           aws-region: ${{ env.AWS_REGION }}
       
-      - uses: pnpm/action-setup@v2
+      - uses: pnpm/action-setup@v6
         with:
           version: "10.34.3"
       
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '22'
           cache: 'pnpm'