diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7853d25..66c4ba6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
         ubuntu-version: [ubuntu-latest, ubuntu-24.04]
     runs-on: ${{ matrix.ubuntu-version }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
@@ -26,7 +26,7 @@ jobs:
   windows:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-python@v5
         with:
           python-version: '3.x'
@@ -39,7 +39,7 @@ jobs:
       matrix:
         env: [format, mypy]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-python@v5
         with:
           python-version: '3.x'
@@ -53,7 +53,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-python@v5
       with:
         python-version: '3.x'