diff --git a/Gemfile b/Gemfile
index 9b1b7b8..b59757f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,7 @@ gem 'data_mapper'
 gem 'dm-postgres-adapter'
 gem 'pg'
 gem 'unicorn'
+gem 'rack-flash3'
 
 group :development do
   gem 'shotgun'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9fbd38b..0537a93 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,6 +61,8 @@ GEM
     multi_json (1.7.3)
     pg (0.15.1)
     rack (1.5.2)
+    rack-flash3 (1.0.5)
+      rack
     raindrops (0.13.0)
     rest-client (1.6.7)
       mime-types (>= 1.16)
@@ -90,6 +92,7 @@ DEPENDENCIES
   dm-postgres-adapter
   haml
   pg
+  rack-flash3
   shotgun
   sinatra
   taps