diff --git a/.github/workflows/buildwheel.yml b/.github/workflows/buildwheel.yml
index c3ba6333..bf78eaa5 100644
--- a/.github/workflows/buildwheel.yml
+++ b/.github/workflows/buildwheel.yml
@@ -13,7 +13,7 @@ jobs:
         os: [ubuntu-20.04, windows-2019, macos-12]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v5
         with:
@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v5
         with:
@@ -81,7 +81,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v5
         with:
@@ -129,7 +129,7 @@ jobs:
         # 'python-flint' means install from PyPI sdist
         target: ['.', 'python-flint']
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}