diff --git a/Gemfile.lock b/Gemfile.lock
index c050fac..9e09806 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,6 +47,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.3.3)
+    concurrent-ruby (1.1.5)
     crack (0.3.1)
     cucumber (1.2.1)
       builder (>= 2.1.2)
@@ -76,7 +77,8 @@ GEM
     happymapper (0.4.0)
       libxml-ruby (~> 2.0)
     hike (1.2.1)
-    i18n (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     journey (1.0.4)
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)
@@ -99,13 +101,10 @@ GEM
     nokogiri (1.5.5)
     pivotal-tracker (0.5.4)
       builder
-      builder
-      happymapper (>= 0.3.2)
       happymapper (>= 0.3.2)
       nokogiri (>= 1.4.3)
       nokogiri (~> 1.4)
       rest-client (~> 1.6.0)
-      rest-client (~> 1.6.0)
     polyglot (0.3.3)
     rack (1.4.1)
     rack-cache (1.2)