diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af93a8e..89c4770 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
           git config --global user.name "Test"
           git config --global init.defaultBranch master
 
-      - uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
+      - uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f # v1.266.0
         with:
           ruby-version: ${{ matrix.ruby }}
 
@@ -46,7 +46,7 @@ jobs:
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
 
-      - uses: ruby/setup-ruby@dffc446db9ba5a0c4446edb5bca1c5c473a806c5 # v1.235.0
+      - uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f # v1.266.0
 
       - name: Install dependencies
         run: bundle install