diff --git a/lib/benchmark.rb b/lib/benchmark.rb
index 6fdc26c482..380e81813e 100644
--- a/lib/benchmark.rb
+++ b/lib/benchmark.rb
@@ -121,7 +121,7 @@
 
 module Benchmark
 
-  VERSION = "0.3.0"
+  VERSION = "0.4.0"
 
   BENCHMARK_VERSION = "2002-04-25" # :nodoc: