index acd1874..f493451 100644
--- a/Gemfile
+++ b/Gemfile
@@ -318,3 +318,5 @@ gem 'oauth2', '~> 1.0.0'
 
 # Soft deletion
 gem "paranoia", "~> 2.0"
+
+gem "activerecord-nulldb-adapter"
index 14d2c76..7a010f0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -34,6 +34,8 @@ GEM
       activesupport (= 4.2.5.1)
       arel (~> 6.0)
     activerecord-deprecated_finders (1.0.4)
+    activerecord-nulldb-adapter (0.3.2)
+      activerecord (>= 2.0.0)
     activerecord-session_store (0.1.2)
       actionpack (>= 4.0.0, < 5)
       activerecord (>= 4.0.0, < 5)
@@ -880,6 +882,7 @@ DEPENDENCIES
   RedCloth (~> 4.2.9)
   ace-rails-ap (~> 2.0.1)
   activerecord-deprecated_finders (~> 1.0.3)
+  activerecord-nulldb-adapter
   activerecord-session_store (~> 0.1.0)
   acts-as-taggable-on (~> 3.4)
   addressable (~> 2.3.8)