diff --git a/.github/workflows/ci-validation.yml b/.github/workflows/ci-validation.yml
index f07c44d..20c11f0 100644
--- a/.github/workflows/ci-validation.yml
+++ b/.github/workflows/ci-validation.yml
@@ -13,7 +13,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
@@ -43,7 +43,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/pre-release-check.yml b/.github/workflows/pre-release-check.yml
index 1803f2b..b036cb8 100644
--- a/.github/workflows/pre-release-check.yml
+++ b/.github/workflows/pre-release-check.yml
@@ -13,7 +13,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e6618b3..713cd2a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/security-scan.yml b/.github/workflows/security-scan.yml
index fefbc4d..9a06063 100644
--- a/.github/workflows/security-scan.yml
+++ b/.github/workflows/security-scan.yml
@@ -17,7 +17,7 @@ jobs:
       
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       
     - name: Find project file
       id: find-project
@@ -41,7 +41,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       
     - name: Setup .NET
       uses: actions/setup-dotnet@v4