diff --git a/.github/workflows/advanced-testing.yml b/.github/workflows/advanced-testing.yml
index e3d7e63..d797112 100644
--- a/.github/workflows/advanced-testing.yml
+++ b/.github/workflows/advanced-testing.yml
@@ -18,7 +18,7 @@ jobs:
     name: Property-Based Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       
       - name: Setup Rust
         uses: actions-rust-lang/setup-rust-toolchain@v1
@@ -35,7 +35,7 @@ jobs:
     name: Gas Cost Benchmarks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       
       - name: Setup Rust
         uses: actions-rust-lang/setup-rust-toolchain@v1
@@ -71,7 +71,7 @@ jobs:
     # Only run on schedule (weekly) or manual trigger
     if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       
       - name: Setup Rust
         uses: actions-rust-lang/setup-rust-toolchain@v1
@@ -118,7 +118,7 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       
       - name: Setup Rust
         uses: actions-rust-lang/setup-rust-toolchain@v1
@@ -139,7 +139,7 @@ jobs:
     name: Test Coverage Report
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       
       - name: Setup Rust
         uses: actions-rust-lang/setup-rust-toolchain@v1
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 17c7f1a..910c6c9 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -54,7 +54,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       # -----------------------------------------------------------------------
       # Rust setup (skipped for javascript-typescript matrix leg)
diff --git a/.github/workflows/npm-audit.yml b/.github/workflows/npm-audit.yml
index f166a62..670b464 100644
--- a/.github/workflows/npm-audit.yml
+++ b/.github/workflows/npm-audit.yml
@@ -46,7 +46,7 @@ jobs:
 
     steps:
       - name: Check out repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
 
       - name: Set up Node.js
         uses: actions/setup-node@v4