diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index 0b7a83f..a1cd0b8 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -16,7 +16,7 @@ jobs:
   security_audit:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Cache cargo
       uses: actions/cache@v4
diff --git a/.github/workflows/book.yml b/.github/workflows/book.yml
index 497c0da..c3b9a09 100644
--- a/.github/workflows/book.yml
+++ b/.github/workflows/book.yml
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c5748fb..756e73b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -135,7 +135,7 @@ jobs:
     name: Quality Gate
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -172,7 +172,7 @@ jobs:
     name: Benchmarks
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable
@@ -195,7 +195,7 @@ jobs:
     name: Minimum Supported Rust Version (1.82)
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust 1.82
       uses: dtolnay/rust-toolchain@1.82
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index bb98091..20cc704 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -27,7 +27,7 @@ jobs:
           - auth_flows
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       
       - name: Install Rust nightly
         uses: dtolnay/rust-toolchain@nightly
@@ -77,7 +77,7 @@ jobs:
     if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       
       - name: Install Rust nightly
         uses: dtolnay/rust-toolchain@nightly
@@ -107,7 +107,7 @@ jobs:
     if: github.event_name == 'workflow_dispatch'
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       
       - name: Install Rust nightly
         uses: dtolnay/rust-toolchain@nightly
diff --git a/.github/workflows/quality-badges.yml b/.github/workflows/quality-badges.yml
index 3fac45e..a739df3 100644
--- a/.github/workflows/quality-badges.yml
+++ b/.github/workflows/quality-badges.yml
@@ -16,7 +16,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
     
diff --git a/.github/workflows/release-tester.yml b/.github/workflows/release-tester.yml
index 5c60e76..d177298 100644
--- a/.github/workflows/release-tester.yml
+++ b/.github/workflows/release-tester.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e85dc7d..1e466fc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
     name: Create Release
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Get version from tag
       id: get_version
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: create-release
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust
       uses: dtolnay/rust-toolchain@stable