diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e389e49..fc8c906 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13', '3.14' ]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
@@ -43,7 +43,7 @@ jobs:
         python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13', '3.14' ]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
@@ -68,7 +68,7 @@ jobs:
     if: ${{ github.event_name == 'release' }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python
         uses: actions/setup-python@v6
         with: