diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 5bb34230d..ed829b645 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -13,7 +13,8 @@ jobs:
           - '3.2'
           - '3.3'
           # - jruby
-          - truffleruby
+          # NOTE: temporarily disable truffleruby due to weird rspec issue
+          # - truffleruby
     name: Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v4