diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bfc7f38..588bc96 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
       matrix:
         ruby: ["3.2", "3.3"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2844dc8..aa92acc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,7 +19,7 @@ jobs:
       name: rubygems
       url: https://rubygems.org/gems/cryptohopper
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: ruby/setup-ruby@v1
         with: