diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e09589f..949af9c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v4
         with:
           enable-cache: true
@@ -33,7 +33,7 @@ jobs:
     name: Typecheck
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: astral-sh/setup-uv@v4
         with:
           enable-cache: true
@@ -50,7 +50,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0  # hatch-vcs needs tags
       - uses: astral-sh/setup-uv@v4
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [lint, typecheck, test]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: astral-sh/setup-uv@v4
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d5e8fa8..9e2c4f0 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,7 +12,7 @@ jobs:
     name: Build and publish GitHub Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0  # hatch-vcs needs tags
       - uses: astral-sh/setup-uv@v4