diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8a6a907..d5606e5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
           - beta
           - nightly
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@master
@@ -60,7 +60,7 @@ jobs:
         target:
           - x86_64-unknown-linux-gnu
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@master
@@ -85,7 +85,7 @@ jobs:
     name: Security Audit
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e835ec8..575b34e 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -26,7 +26,7 @@ jobs:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@stable
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index b2d4319..ea5b0c6 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -16,7 +16,7 @@ jobs:
     name: Nightly Test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust nightly toolchain
       uses: dtolnay/rust-toolchain@master
@@ -46,7 +46,7 @@ jobs:
     name: Dependency Update Check
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@stable
@@ -68,7 +68,7 @@ jobs:
     name: Benchmark
     runs-on: ubuntu-latest
     steps:
-    - 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 e237478..f67ed38 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -50,7 +50,7 @@ jobs:
             asset_name: openprot-macos-x86_64
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@stable
@@ -119,7 +119,7 @@ jobs:
     needs: build-release
     if: startsWith(github.ref, 'refs/tags/')
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install Rust toolchain
       uses: dtolnay/rust-toolchain@stable