diff --git a/test/json/json_parser_test.rb b/test/json/json_parser_test.rb
index d29f8077..ec939190 100644
--- a/test/json/json_parser_test.rb
+++ b/test/json/json_parser_test.rb
@@ -843,7 +843,6 @@ def test_parse_whitespace_after_newline
 
   def test_frozen
     parser_config = JSON::Parser::Config.new({}).freeze
-    omit "JRuby failure in CI" if RUBY_ENGINE == "jruby"
     assert_raise FrozenError do
       parser_config.send(:initialize, {})
     end