diff --git a/README.md b/README.md
index f4864dd..4ecb0d0 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,7 @@ writing.
 * Ruby 2.5
 * Ruby 2.6
 * Ruby 2.7
+* Ruby 3.0
 * [JRuby](https://github.com/jruby/jruby)
 * [TruffleRuby](https://github.com/oracle/truffleruby)