diff --git a/.github/workflows/cibuild.yaml b/.github/workflows/cibuild.yaml
index 3b77db2..b2bccfc 100644
--- a/.github/workflows/cibuild.yaml
+++ b/.github/workflows/cibuild.yaml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v6
-      - uses: ruby/setup-ruby@7372622e62b60b3cb750dcd2b9e32c247ffec26a # v1.302.0
+      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
         with:
           ruby-version: ${{ matrix.ruby }}
       - name: script/cibuild
diff --git a/.github/workflows/pages-gem.yml b/.github/workflows/pages-gem.yml
index bae8e48..a226057 100644
--- a/.github/workflows/pages-gem.yml
+++ b/.github/workflows/pages-gem.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v6
       - name: Setup Ruby
-        uses: ruby/setup-ruby@7372622e62b60b3cb750dcd2b9e32c247ffec26a # v1.302.0
+        uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
         with:
           ruby-version: "3.3"
       - name: Build gem