diff --git a/test/support/rg.rb b/test/support/rg.rb
index 32efebe..f44dc85 100644
--- a/test/support/rg.rb
+++ b/test/support/rg.rb
@@ -1,2 +1,2 @@
 # Enable color test output
-require "minitest/rg"
+require "minitest/rg" if RUBY_VERSION >= "2.0"