Gemfile.lock in timespan-0.2.1 vs Gemfile.lock in timespan-0.2.2

@@ -1,10 +1,10 @@
 GIT
   remote: git://github.com/kristianmandrup/ruby-duration.git
-  revision: 002f43a5ad5b6191ae5ee218e532176005279384
+  revision: c9b47be02e4a35f7ed3bf7de909d583d14272be8
   specs:
-    ruby-duration (2.1.4)
+    ruby-duration (2.2.1)
       activesupport (>= 3.0.0)
       i18n
 
 GEM
   remote: http://rubygems.org/
@@ -63,11 +63,11 @@
       bson (~> 1.6.2)
     mongoid (2.4.9)
       activemodel (~> 3.1)
       mongo (~> 1.3)
       tzinfo (~> 0.3.22)
-    multi_json (1.3.2)
+    multi_json (1.3.4)
     numerizer (0.1.1)
     polyglot (0.3.3)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)
@@ -128,8 +128,8 @@
   jeweler (>= 1.8.3)
   mongoid (~> 2.4)
   rails (~> 3.2)
   rdoc (>= 3.12)
   rspec (>= 2.8.0)
-  ruby-duration!
+  ruby-duration (~> 2.2.1)!
   simplecov (>= 0.5)
   spanner