diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0a76869..30dd61d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     name: Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: check
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: check
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
@@ -54,7 +54,7 @@ jobs:
     name: Format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 7398f93..54b1b18 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -16,7 +16,7 @@ jobs:
     name: Code Coverage
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
diff --git a/.github/workflows/dependency-analysis.yml b/.github/workflows/dependency-analysis.yml
index 7492175..c609198 100644
--- a/.github/workflows/dependency-analysis.yml
+++ b/.github/workflows/dependency-analysis.yml
@@ -16,7 +16,7 @@ jobs:
     name: Dependency Analysis
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 534041b..c5d7ac2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
     name: Verify
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: "1.96.0"
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 520a0cc..d9ee88a 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -16,7 +16,7 @@ jobs:
     name: Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: "1.96.0"
@@ -42,7 +42,7 @@ jobs:
     name: Secrets Scan
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: Install and run gitleaks
diff --git a/.github/workflows/stability.yml b/.github/workflows/stability.yml
index 431d248..270f268 100644
--- a/.github/workflows/stability.yml
+++ b/.github/workflows/stability.yml
@@ -21,7 +21,7 @@ jobs:
     name: Regression Gate
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
@@ -37,7 +37,7 @@ jobs:
     name: Security Audit (blocking)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
@@ -63,7 +63,7 @@ jobs:
     name: Cargo Deny
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}
@@ -84,7 +84,7 @@ jobs:
       ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
       OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ env.RUST_VERSION }}