diff --git a/config/application.rb b/config/application.rb
index 8f866d3..ca4c054 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -47,9 +47,6 @@ module Errbit
       g.fixture_replacement :fabrication
     end
 
-    # Enable the mongoid identity map for performance
-    Mongoid.identity_map_enabled = true
-
     # IssueTracker subclasses use inheritance, so preloading models provides querying consistency in dev mode.
     config.mongoid.preload_models = true
 
@@ -73,4 +70,3 @@ module Errbit
     config.assets.version = '1.0'
   end
 end
-
diff --git a/config/initializers/mongo.rb b/config/initializers/mongo.rb
index f18333b..16cddc4 100644
--- a/config/initializers/mongo.rb
+++ b/config/initializers/mongo.rb
@@ -40,4 +40,3 @@ elsif ENV['HEROKU'] || ENV['USE_ENV']
 end
 
 Mongoid.use_activesupport_time_zone = true
-Mongoid.identity_map_enabled = true
diff --git a/config/mongoid.example.yml b/config/mongoid.example.yml
index e586d88..b0d063e 100644
--- a/config/mongoid.example.yml
+++ b/config/mongoid.example.yml
@@ -14,7 +14,6 @@ development:
       hosts:
         - localhost:27017
   options:
-    identity_map_enabled: true
     use_utc: true
 
 test:
@@ -24,7 +23,6 @@ test:
         - localhost:27017
       database: errbit_test
   options:
-    identity_map_enabled: true
     use_utc: true
 
 # set these environment variables on your prod server
@@ -37,4 +35,4 @@ production:
       username: <%= ENV['MONGOID_USERNAME'] %>
       password: <%= ENV['MONGOID_PASSWORD'] %>
   options:
-    identity_map_enabled: true
+    use_utc: true
\ No newline at end of file
--
libgit2 0.21.2