diff --git a/Gemfile.lock b/Gemfile.lock
index 755b113..5649b97 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,13 +84,15 @@ GEM
       mimemagic (>= 0.1.7)
       s3 (>= 0.3.7)
     journey (1.0.4)
-    json (1.7.4)
+    json (1.8.6)
     mail (2.4.4)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.19)
-    mimemagic (0.1.8)
+    mimemagic (0.4.3)
+      nokogiri (~> 1)
+      rake
     mongo (1.7.0)
       bson (~> 1.7.0)
     mongoid (2.5.0)
@@ -131,7 +133,7 @@ GEM
       rdoc (~> 3.4)
       thor (>= 0.14.6, < 2.0)
     rake (0.9.2.2)
-    rdoc (3.12)
+    rdoc (3.12.2)
       json (~> 1.4)
     redis (3.0.1)
     rspec (2.11.0)