diff --git a/.github/workflows/Build_mR-NB.yml b/.github/workflows/Build_mR-NB.yml
index ff01f9eb..45c918be 100644
--- a/.github/workflows/Build_mR-NB.yml
+++ b/.github/workflows/Build_mR-NB.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
       - name: (01) Checkout Repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         
       - name: (02) Setup MSBuild
         uses: microsoft/setup-msbuild@v2
diff --git a/.github/workflows/add_PR_2_chlog.yml b/.github/workflows/add_PR_2_chlog.yml
index 112f4afb..256a127c 100644
--- a/.github/workflows/add_PR_2_chlog.yml
+++ b/.github/workflows/add_PR_2_chlog.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Check for Renovate dependency update
         id: check-renovate