diff --git a/Gemfile.lock b/Gemfile.lock
index bbda2c4..a5a1e07 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,6 @@ GEM
   remote: http://rubygems.org/
   specs:
     builder (3.0.0)
-    configuration (1.3.1)
     git (1.2.5)
     guard (0.4.2)
       thor (~> 0.14.6)
@@ -12,39 +11,30 @@ GEM
     guard-test (0.3.0)
       guard (>= 0.2.2)
       test-unit (~> 2.2)
-    heroku (2.3.3)
-      launchy (>= 0.3.2)
-      rest-client (~> 1.6.1)
-      term-ansicolor (~> 1.0.5)
+    heroku (3.99.4)
     hpricot (0.8.4)
     jeweler (1.6.2)
       bundler (~> 1.0)
       git (>= 1.2.5)
       rake
-    launchy (0.4.0)
-      configuration (>= 0.0.5)
-      rake (>= 0.8.1)
     maruku (0.6.0)
       syntax (>= 1.0.0)
-    mime-types (1.16)
+    mime-types (1.25.1)
     rack (1.3.0)
-    rake (0.9.2)
+    rake (13.0.1)
     rdiscount (1.6.8)
-    rest-client (1.6.3)
-      mime-types (>= 1.16)
+    rest-client (1.6.14)
+      mime-types (~> 1.16)
     riot (0.12.4)
       rr
     rr (1.0.2)
     ruby_slippers (0.2.15)
-      builder
       builder
       hpricot
       maruku
       rack
-      rack
       rake
       rdiscount
-      rdiscount
     sequel (3.20.0)
     shotgun (0.9)
       rack (>= 1.0)
@@ -56,11 +46,10 @@ GEM
     syntax (1.0.0)
     taps (0.3.23)
       rack (>= 1.0.1)
-      rest-client (< 1.7.0, >= 1.4.0)
+      rest-client (>= 1.4.0, < 1.7.0)
       sequel (~> 3.20.0)
       sinatra (~> 1.0.0)
       sqlite3-ruby (~> 1.2)
-    term-ansicolor (1.0.5)
     test-unit (2.3.0)
     thor (0.14.6)