diff --git a/.github/workflows/deny.yml b/.github/workflows/deny.yml
index fc75241..bd6bfeb 100644
--- a/.github/workflows/deny.yml
+++ b/.github/workflows/deny.yml
@@ -20,7 +20,7 @@ jobs:
         with:
           access_token: ${{ github.token }}
       - name:           Checkout sources & submodules
-        uses:           actions/checkout@v3
+        uses:           actions/checkout@v4
         with:
           fetch-depth:  5
           submodules:   recursive
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 48392d4..946900d 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -22,7 +22,7 @@ jobs:
         with:
           access_token: ${{ github.token }}
       - name:           Checkout sources & submodules
-        uses:           actions/checkout@v3
+        uses:           actions/checkout@v4
         with:
           fetch-depth:  5
           submodules:   recursive
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 39f65fc..5efcfc9 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust nightly toolchain
         uses: actions-rs/toolchain@v1
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust stable toolchain
         uses: actions-rs/toolchain@v1
@@ -69,7 +69,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust stable toolchain
         uses: actions-rs/toolchain@v1
@@ -92,7 +92,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust stable toolchain
         uses: actions-rs/toolchain@v1
@@ -116,7 +116,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust stable toolchain
         uses: actions-rs/toolchain@v1
@@ -147,7 +147,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust stable toolchain
         uses: actions-rs/toolchain@v1