diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 796d413a..715be7eb 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Ruby
         uses: ruby/setup-ruby@a4effe49ee8ee5b8b5091268c473a4628afb5651 # v1.245.0
         with:
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index e0c77b81..eb89980a 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: 3.4
diff --git a/.github/workflows/push_gem.yml b/.github/workflows/push_gem.yml
index fad0ba8e..16c43b90 100644
--- a/.github/workflows/push_gem.yml
+++ b/.github/workflows/push_gem.yml
@@ -28,7 +28,7 @@ jobs:
         with:
           egress-policy: audit
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: true
 
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index defaa598..6da5fb87 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -9,7 +9,7 @@ jobs:
         ruby: [ head, 3.4, 3.3, 3.2 ]
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 1b27c48a..8ea9e17e 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -9,7 +9,7 @@ jobs:
       matrix:
         ruby: [ 'mingw', 'mswin', '3.4' ]
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         submodules: true
     - name: Set up Ruby