diff --git a/Gemfile.lock b/Gemfile.lock
index b5dd59b..f8ccb6f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,8 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    activesupport (2.3.8)
+    activesupport (3.1.12)
+      multi_json (~> 1.0)
     bson (1.0.4)
     bson_ext (1.0.4)
     daemons (1.1.0)
@@ -20,17 +21,16 @@ GEM
     machinist (1.0.6)
     machinist_mongo (1.1.1)
       machinist (~> 1.0.4)
-    mail (2.2.5)
-      activesupport (>= 2.3.6)
-      mime-types
-      treetop (>= 1.4.5)
-    mime-types (1.16)
+    mail (2.7.1)
+      mini_mime (>= 0.1.1)
+    mini_mime (1.0.2)
     mongo (1.0.5)
       bson (>= 1.0.4)
     mongo_mapper (0.8.2)
       activesupport (>= 2.3.4)
       jnunemaker-validatable (~> 1.8.4)
       plucky (~> 0.3.1)
+    multi_json (1.15.0)
     padrino (0.9.14)
       padrino-admin (= 0.9.14)
       padrino-core (= 0.9.14)
@@ -57,14 +57,12 @@ GEM
       padrino-core (= 0.9.14)
     plucky (0.3.2)
       mongo (~> 1.0.1)
-    polyglot (0.3.1)
     rack (1.2.1)
     rack-flash (0.1.1)
       rack
     rack-test (0.5.4)
       rack (>= 1.0)
     rake (0.8.7)
-    rdiscount (1.6.5)
     riot (0.11.3)
       rr
       term-ansicolor
@@ -80,8 +78,6 @@ GEM
       eventmachine (>= 0.12.6)
       rack (>= 1.0.0)
     thor (0.13.7)
-    treetop (1.4.8)
-      polyglot (>= 0.3.1)
     url_mount (0.2.1)
       rack
 
@@ -100,7 +96,6 @@ DEPENDENCIES
   rack-flash
   rack-test
   rake
-  rdiscount
   riot
   riot-mongo_mapper
   rr