diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6d1e813..906fa0a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -16,7 +16,7 @@ jobs:
     outputs:
       tag: ${{ steps.create-gh-release.outputs.computed-prefix }}${{ steps.create-gh-release.outputs.version }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - id: create-gh-release
         uses: taiki-e/create-gh-release-action@v1
         with:
@@ -28,7 +28,7 @@ jobs:
     name: Build wheels
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v3
         with:
@@ -46,7 +46,7 @@ jobs:
     name: Make SDist
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Build SDist
       run: pipx run build --sdist
@@ -61,7 +61,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/download-artifact@v4
       with:
         name: artifact
@@ -77,7 +77,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: mark release as non-draft
         run: |
           gh release edit ${{ needs.create-release.outputs.tag }} --draft=false
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bda1dea..8f29c83 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Setup Miniconda