diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3dacda4d..16d4cd3c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - '3.3.0-preview2'
+          - '3.3.0-rc1'
           - '3.2'
           - '3.1'
           - '3.1.0'