diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index 1635b9a..21bb09b 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Run audit check
         uses: actions-rs/audit-check@v1.2.0
         with:
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8da16cb..dd677d9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/cache@v3
         with:
           path: |
@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/cache@v3
         with:
           path: |
@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/cache@v3
         with:
           path: |
@@ -83,7 +83,7 @@ jobs:
 #    steps:
 #      - name: Checkout code
 #        # Reference your environment variables
-#        uses: actions/checkout@v3
+#        uses: actions/checkout@v4
 #      - name: Install rust
 #        uses: actions-rs/toolchain@v1
 #      - name: Run cargo login
@@ -107,7 +107,7 @@ jobs:
 #      - clippy_check
 #      - test
 #    steps:
-#      - uses: actions/checkout@v3
+#      - uses: actions/checkout@v4
 #
 #      # Use caching to speed up your build
 #      - name: Cache publish-action bin
diff --git a/.github/workflows/rust-clippy.yml b/.github/workflows/rust-clippy.yml
index 5f4846b..d6b396d 100644
--- a/.github/workflows/rust-clippy.yml
+++ b/.github/workflows/rust-clippy.yml
@@ -28,7 +28,7 @@ jobs:
       actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af #@v1
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 31000a2..9fd45e0 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Build
       run: cargo build --verbose
     - name: Run tests