diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a9405da..249f64f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ jobs:
   jars:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
@@ -24,7 +24,7 @@ jobs:
   sdist:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
       # TODO: sdist shouldn't need java
       - uses: actions/setup-java@v5
@@ -74,7 +74,7 @@ jobs:
 
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -118,7 +118,7 @@ jobs:
           - { machine: 'macos-14', python: '3.10', cmd: '.github/env/macOS/bdist-wheel.sh' }
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v5
         with:
@@ -143,7 +143,7 @@ jobs:
   bdist-wheel-linux-arm64:
     runs-on: 'ubuntu-24.04-arm'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
@@ -172,7 +172,7 @@ jobs:
   bdist-wheel-linux-amd64:
     runs-on: 'ubuntu-24.04'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
@@ -202,7 +202,7 @@ jobs:
     runs-on: ubuntu-24.04
     needs: ['sdist', 'bdist-wheel', 'bdist-wheel-universal2-hack', 'bdist-wheel-linux-amd64', 'bdist-wheel-linux-arm64']
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/download-artifact@v4
         with:
           path: download-artifacts
@@ -232,7 +232,7 @@ jobs:
     if: ${{ startsWith(github.ref, 'refs/heads/release/v') }}
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index db21662..fd28530 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -14,7 +14,7 @@ jobs:
         python: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
         java: ['8', '11', '17', '21', '23']
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-python@v6
         with:
@@ -47,7 +47,7 @@ jobs:
         python: ['3.13t', '3.14t']
         java: ['8', '11', '17', '21', '23']
     steps:
-        - uses: actions/checkout@v5
+        - uses: actions/checkout@v6
 
         - uses: actions/setup-java@v5
           with: