diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index db03f47..6aa6a52 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     name: Lint (ruff)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -44,7 +44,7 @@ jobs:
       matrix:
         python-version: ["3.11", "3.12"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -67,7 +67,7 @@ jobs:
     name: Type check (mypy)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Set up Python
         uses: actions/setup-python@v5