README.md in semantic_logger-3.2.1 vs README.md in semantic_logger-3.3.0

@@ -36,10 +36,10 @@
 instead of Semantic Logger directly since it will automatically replace the Rails default logger with Semantic Logger.
 
 ## Supports
 
 Semantic Logger is tested and supported on the following Ruby platforms:
-- Ruby 2.0 and above
+- Ruby 2.1 and above
 - JRuby 1.7 and above
 - JRuby 9.0 and above
 - Rubinius 2.5 and above
 
 The following gems are only required when their corresponding appenders are being used,