diff --git a/.travis.yml b/.travis.yml
index 99b9a655..3dca7316 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,3 +22,4 @@ script:
 addons:
   code_climate:
     repo_token: 479d3bf56798fbc7fff3fc8151a5ed09e8ac368fd5af332c437b9e07dbebb44e
+  postgresql: "9.4"
diff --git a/spec/controllers/mappings_controller_spec.rb b/spec/controllers/mappings_controller_spec.rb
index 8d1c424d..e5f59db7 100644
--- a/spec/controllers/mappings_controller_spec.rb
+++ b/spec/controllers/mappings_controller_spec.rb
@@ -24,6 +24,7 @@ RSpec.describe MappingsController, type: :controller do
         post :create, params: {
           mapping: valid_attributes
         }
+        mapping.updated_by = controller.current_user
         expect(comparable(Mapping.last)).to eq comparable(mapping)
       end
     end
diff --git a/spec/factories/mappings.rb b/spec/factories/mappings.rb
index 1bcdf891..ec06b613 100644
--- a/spec/factories/mappings.rb
+++ b/spec/factories/mappings.rb
@@ -5,6 +5,7 @@ FactoryGirl.define do
     yloc 0
     map
     user
+    association :updated_by, factory: :user
     association :mappable, factory: :topic
 
     factory :mapping_random_location do