diff --git a/Gemfile.lock b/Gemfile.lock
index d7cea73..8d9acf4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,7 +36,7 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
+    addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     arel (6.0.4)
     autoprefixer-rails (9.6.1.1)
@@ -156,7 +156,8 @@ GEM
     nifty-generators (0.4.6)
     nokogiri (1.6.7)
       mini_portile2 (~> 2.0.0.rc2)
-    public_suffix (3.1.1)
+    pg (1.2.3)
+    public_suffix (4.0.6)
     rack (1.6.11)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -295,6 +296,7 @@ DEPENDENCIES
   jquery-rails
   nifty-generators
   nokogiri (= 1.6.7)
+  pg
   rails (= 4.2.5)
   rails3-jquery-autocomplete
   rails_12factor
@@ -304,7 +306,7 @@ DEPENDENCIES
   selenium-webdriver
   slim-rails
   spring
-  sqlite3 (~> 1.3.6)
+  sqlite3
   turbolinks
   twitter-bootstrap-rails
   uglifier (>= 1.3.0)