diff --git a/app/Gemfile.lock b/app/Gemfile.lock
index 9b8a9b6..32a7209 100644
--- a/app/Gemfile.lock
+++ b/app/Gemfile.lock
@@ -48,6 +48,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1.1)
+    crass (1.0.6)
     debug_inspector (0.0.2)
     erubis (2.7.0)
     execjs (2.6.0)
@@ -62,16 +63,18 @@ GEM
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (1.8.3)
-    loofah (2.0.3)
+    loofah (2.19.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.6.2)
-    mini_portile (0.6.2)
+    mini_portile2 (2.1.0)
     minitest (5.8.0)
     multi_json (1.11.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
+    pg (1.4.5)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -92,8 +95,13 @@ GEM
       activesupport (>= 4.2.0.beta, < 5.0)
       nokogiri (~> 1.6.0)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.2)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.4.4)
+      loofah (~> 2.19, >= 2.19.1)
+    rails_12factor (0.0.3)
+      rails_serve_static_assets
+      rails_stdout_logging
+    rails_serve_static_assets (0.0.5)
+    rails_stdout_logging (0.0.5)
     railties (4.2.4)
       actionpack (= 4.2.4)
       activesupport (= 4.2.4)
@@ -143,7 +151,9 @@ DEPENDENCIES
   coffee-rails (~> 4.1.0)
   jbuilder (~> 2.0)
   jquery-rails
+  pg
   rails (= 4.2.4)
+  rails_12factor
   sass-rails (~> 5.0)
   sdoc (~> 0.4.0)
   spring