diff --git a/Gemfile.lock b/Gemfile.lock
index c050fac..393b931 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,8 @@ GEM
     activesupport (3.2.3)
       i18n (~> 0.6)
       multi_json (~> 1.0)
-    addressable (2.3.2)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (3.0.2)
     builder (3.0.0)
     capybara (1.1.2)
@@ -99,14 +100,12 @@ 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)
+    public_suffix (5.0.0)
     rack (1.4.1)
     rack-cache (1.2)
       rack (>= 0.4)