diff --git a/lib/timecost/version.rb b/lib/timecost/version.rb
index 4c23059..9eba2cf 100644
--- a/lib/timecost/version.rb
+++ b/lib/timecost/version.rb
@@ -1,3 +1,3 @@
 module Timecost
-  VERSION = "0.2.1"
+  VERSION = "0.2.2"
 end