diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b46c4cc..0f17a39 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Setup Ruby
-        uses: ruby/setup-ruby@ab177d40ee5483edb974554986f56b33477e21d0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f
         with:
           ruby-version: '3.0'
           bundler-cache: true
@@ -25,7 +25,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Setup Ruby
-        uses: ruby/setup-ruby@ab177d40ee5483edb974554986f56b33477e21d0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f
         with:
           ruby-version: '3.0'
           bundler-cache: true
@@ -38,7 +38,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Setup Ruby
-        uses: ruby/setup-ruby@ab177d40ee5483edb974554986f56b33477e21d0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f
         with:
           ruby-version: '3.0'
           bundler-cache: true
@@ -51,7 +51,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - name: Setup Ruby
-        uses: ruby/setup-ruby@ab177d40ee5483edb974554986f56b33477e21d0
+        uses: ruby/setup-ruby@4ff6f3611a42bc75eee1e5138240eb1613f48c8f
         with:
           ruby-version: '3.0'
           bundler-cache: true