diff --git a/Gemfile b/Gemfile
index 2b82440..5a15062 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ source 'http://rubygems.org'
 gem 'rails', '3.0.13'
 
 gem 'will_paginate', ">= 3.0.pre2"
-gem 'paperclip', "=2.3.11"
+gem 'paperclip', "4.2.2"
 gem 'formtastic'
 gem 'validation_reflection'
 gem 'mysql2','0.2.7'
diff --git a/Gemfile.lock b/Gemfile.lock
index d74af7f..2d231c2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,13 +30,16 @@ GEM
     activesupport (3.0.13)
     arel (2.0.10)
     builder (2.1.2)
+    climate_control (0.2.0)
+    cocaine (0.5.8)
+      climate_control (>= 0.0.3, < 1.0)
     deep_cloneable (1.4.1)
       rails
     erubis (2.6.6)
       abstract (>= 1.0.0)
     formtastic (2.2.1)
       actionpack (>= 3.0)
-    i18n (0.5.0)
+    i18n (0.5.4)
     json (1.7.3)
     mail (2.2.19)
       activesupport (>= 2.3.6)
@@ -45,9 +48,11 @@ GEM
       treetop (~> 1.4.8)
     mime-types (1.19)
     mysql2 (0.2.7)
-    paperclip (2.3.11)
-      activerecord (>= 2.3.0)
-      activesupport (>= 2.3.2)
+    paperclip (4.2.2)
+      activemodel (>= 3.0.0)
+      activesupport (>= 3.0.0)
+      cocaine (~> 0.5.3)
+      mime-types
     polyglot (0.3.3)
     rack (1.2.5)
     rack-mount (0.6.14)
@@ -76,7 +81,7 @@ GEM
     treetop (1.4.10)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.33)
+    tzinfo (0.3.55)
     validation_reflection (1.0.0)
     will_paginate (3.0.3)
 
@@ -87,7 +92,7 @@ DEPENDENCIES
   deep_cloneable (~> 1.4.1)
   formtastic
   mysql2 (= 0.2.7)
-  paperclip (= 2.3.11)
+  paperclip (= 4.2.2)
   rails (= 3.0.13)
   rmagick
   validation_reflection