diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ed448bb..dc252cc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     name: YARD Documentation
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 3.2 # Specify the oldest supported Ruby version.
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d0541a9..ba0116b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -34,7 +34,7 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Fetch all history for all branches and tags