diff --git a/.github/workflows/CI_build.yml b/.github/workflows/CI_build.yml
index 446e235..b5d2adb 100644
--- a/.github/workflows/CI_build.yml
+++ b/.github/workflows/CI_build.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Add msbuild to PATH
       uses: microsoft/setup-msbuild@v2.0.0
diff --git a/.github/workflows/CI_validate.yml b/.github/workflows/CI_validate.yml
index 165ef32..65cb041 100644
--- a/.github/workflows/CI_validate.yml
+++ b/.github/workflows/CI_validate.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
     - name: Checkout repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Add msbuild to PATH
       uses: microsoft/setup-msbuild@v2.0.0