diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index daad7a2..5463da9 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -13,7 +13,7 @@ jobs:
     name: Check format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 9.0.x
@@ -29,7 +29,7 @@ jobs:
         os: [ubuntu-latest, windows-latest]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 9.0.x
@@ -55,7 +55,7 @@ jobs:
           ]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 9.0.x