diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index e8f701c..8f4d3e1 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/bip0032.yml b/.github/workflows/bip0032.yml
index a1657f4..613d075 100644
--- a/.github/workflows/bip0032.yml
+++ b/.github/workflows/bip0032.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
@@ -72,7 +72,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/bip0039.yml b/.github/workflows/bip0039.yml
index b6ce629..705a4a6 100644
--- a/.github/workflows/bip0039.yml
+++ b/.github/workflows/bip0039.yml
@@ -33,7 +33,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
@@ -72,7 +72,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install Rust Toolchain
         uses: actions-rs/toolchain@v1
diff --git a/.github/workflows/workspace.yml b/.github/workflows/workspace.yml
index 37e529a..4a0a696 100644
--- a/.github/workflows/workspace.yml
+++ b/.github/workflows/workspace.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 Toolchain
         uses: actions-rs/toolchain@v1
@@ -45,7 +45,7 @@ jobs:
 #    runs-on: ubuntu-latest
 #    steps:
 #      - name: Checkout Sources
-#        uses: actions/checkout@v3
+#        uses: actions/checkout@v4
 #
 #      - name: Install Rust Toolchain
 #        uses: actions-rs/toolchain@v1