diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cf60503d..190c9f0d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
   supply-chain-audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Block compromised packages
         run: |
           echo "Scanning lockfiles for known malicious packages..."
@@ -31,7 +31,7 @@ jobs:
     needs: supply-chain-audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js 20
         uses: actions/setup-node@v4
         with:
@@ -73,7 +73,7 @@ jobs:
     needs: supply-chain-audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js 20
         uses: actions/setup-node@v4
         with:
@@ -101,7 +101,7 @@ jobs:
   env-docs-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js 20
         uses: actions/setup-node@v4
         with:
@@ -112,7 +112,7 @@ jobs:
   contracts:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
      
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 517aab68..011bab00 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -27,7 +27,7 @@ jobs:
         language: ["javascript-typescript"]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
diff --git a/.github/workflows/deploy-staging.yml b/.github/workflows/deploy-staging.yml
index a4f41042..7059dc89 100644
--- a/.github/workflows/deploy-staging.yml
+++ b/.github/workflows/deploy-staging.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set lowercase owner
         run: echo "OWNER_LC=${GITHUB_REPOSITORY_OWNER,,}" >> $GITHUB_ENV
@@ -124,7 +124,7 @@ jobs:
     environment: staging
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set lowercase owner
         run: echo "OWNER_LC=${GITHUB_REPOSITORY_OWNER,,}" >> $GITHUB_ENV
diff --git a/.github/workflows/loadtest.yml b/.github/workflows/loadtest.yml
index 6aa517ea..d1d2f8fa 100644
--- a/.github/workflows/loadtest.yml
+++ b/.github/workflows/loadtest.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Run k6 baseline load test
         uses: grafana/k6-action@v0.3.0