diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb25389..7187805 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
       matrix:
         ruby: ["3.1", "3.2", "3.3", "3.4", "head"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: rm Gemfile.lock
       - uses: ruby/setup-ruby@v1
         with:
@@ -39,7 +39,7 @@ jobs:
         plat: [ "ubuntu", "macos" ]
     runs-on: ${{matrix.plat}}-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.4"
@@ -54,7 +54,7 @@ jobs:
         plat: [ "ubuntu", "macos" ]
     runs-on: ${{matrix.plat}}-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/upstream.yml b/.github/workflows/upstream.yml
index 8d56199..1a8cf81 100644
--- a/.github/workflows/upstream.yml
+++ b/.github/workflows/upstream.yml
@@ -20,7 +20,7 @@ jobs:
       matrix:
         ruby: ["3.3"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{matrix.ruby}}
@@ -45,7 +45,7 @@ jobs:
     env:
       RAILSOPTS: --git=https://github.com/rails/rails --ref=${{ matrix.ref }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.3"
@@ -64,7 +64,7 @@ jobs:
     env:
       RAILSOPTS: --git=https://github.com/rails/rails --ref=${{ matrix.ref }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.3"