diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d254aa2..222a667 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,13 +16,13 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
+          - '3.3'
           - '3.2'
           - '3.1'
           - '3.0'
           - '2.7'
           - '2.6'
           - '2.5'
-          - ruby-head
     env:
       RUBYOPT: "--disable-error_highlight"
     steps: