diff --git a/Gemfile.lock b/Gemfile.lock
index da451b4..f87510e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
       activesupport (= 3.1.0)
     activesupport (3.1.0)
       multi_json (~> 1.0)
-    addressable (2.2.6)
+    addressable (2.2.8)
     arel (2.2.1)
     bcrypt-ruby (3.0.1)
     builder (3.0.0)
@@ -76,11 +76,7 @@ GEM
     ffi (1.0.9)
     gherkin (2.4.18)
       json (>= 1.4.6)
-    heroku (2.7.0)
-      launchy (>= 0.3.2)
-      rest-client (~> 1.6.1)
-      rubyzip
-      term-ansicolor (~> 1.0.5)
+    heroku (3.99.4)
     hike (1.2.1)
     i18n (0.6.0)
     jquery-rails (1.0.19)
@@ -103,7 +99,7 @@ GEM
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
-    mime-types (1.16)
+    mime-types (1.25.1)
     multi_json (1.0.4)
     nokogiri (1.5.0)
     pg (0.11.0)
@@ -136,8 +132,8 @@ GEM
     rake (0.9.2.2)
     rdoc (3.12)
       json (~> 1.4)
-    rest-client (1.6.7)
-      mime-types (>= 1.16)
+    rest-client (1.6.14)
+      mime-types (~> 1.16)
     rspec (2.6.0)
       rspec-core (~> 2.6.0)
       rspec-expectations (~> 2.6.0)
@@ -151,7 +147,7 @@ GEM
       activesupport (~> 3.0)
       railties (~> 3.0)
       rspec (~> 2.6.0)
-    rubyzip (0.9.4)
+    rubyzip (2.0.0)
     sass (3.1.7)
     sass-rails (3.1.2)
       actionpack (~> 3.1.0)
@@ -180,7 +176,8 @@ GEM
       sequel (~> 3.20.0)
       sinatra (~> 1.0.0)
       sqlite3-ruby (~> 1.2)
-    term-ansicolor (1.0.6)
+    term-ansicolor (1.7.1)
+      tins (~> 1.0)
     therubyracer (0.9.9)
       libv8 (~> 3.3.10)
     thin (1.2.11)
@@ -189,6 +186,7 @@ GEM
       rack (>= 1.0.0)
     thor (0.14.6)
     tilt (1.3.3)
+    tins (1.21.1)
     treetop (1.4.10)
       polyglot
       polyglot (>= 0.3.1)