diff --git a/.github/workflows/build-code.yml b/.github/workflows/build-code.yml
index a60a882..d6bda15 100644
--- a/.github/workflows/build-code.yml
+++ b/.github/workflows/build-code.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up .NET
         uses: actions/setup-dotnet@v3
diff --git a/.github/workflows/lint-code.yml b/.github/workflows/lint-code.yml
index b51757f..e7241aa 100644
--- a/.github/workflows/lint-code.yml
+++ b/.github/workflows/lint-code.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up .NET
         uses: actions/setup-dotnet@v3
diff --git a/.github/workflows/scan-code.yml b/.github/workflows/scan-code.yml
index 5ad550c..aff2641 100644
--- a/.github/workflows/scan-code.yml
+++ b/.github/workflows/scan-code.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2
diff --git a/.github/workflows/test-code.yml b/.github/workflows/test-code.yml
index bbac184..325888d 100644
--- a/.github/workflows/test-code.yml
+++ b/.github/workflows/test-code.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Check out Git repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up .NET
         uses: actions/setup-dotnet@v3