diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b6b61dde..607de1c0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
   test-core:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -47,7 +47,7 @@ jobs:
           - os: windows-latest
             python-version: "3.13"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -77,7 +77,7 @@ jobs:
     needs: [test-core, test]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -104,7 +104,7 @@ jobs:
     needs: [test-core, test]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f27b5c5f..2076e50b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,7 +21,7 @@ jobs:
     name: Verify tag matches package version
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Check version
         run: |
           TAG="${GITHUB_REF_NAME#v}"
@@ -47,7 +47,7 @@ jobs:
             arch: arm64
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Build wheels
         uses: pypa/cibuildwheel@v3.4.1
@@ -63,7 +63,7 @@ jobs:
     runs-on: ubuntu-latest
     continue-on-error: true
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Diagnostics
         run: |
@@ -88,7 +88,7 @@ jobs:
     needs: verify_version
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Build sdist
         run: pipx run build --sdist