diff --git a/Gemfile.lock b/Gemfile.lock
index 68f4b73..965ce03 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,7 +83,7 @@ GEM
       tzinfo (~> 1.1)
     arel (6.0.0)
     bcrypt (3.1.10)
-    bourbon (4.2.1)
+    bourbon (4.2.2)
       sass (~> 3.4)
       thor
     builder (3.2.2)
@@ -98,7 +98,7 @@ GEM
     cocaine (0.5.7)
       climate_control (>= 0.0.3, < 1.0)
     coderay (1.1.0)
-    coffee-script (2.3.0)
+    coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.9.1)
@@ -106,7 +106,7 @@ GEM
       mime-types (~> 1.15)
       multi_json (~> 1.0)
       rest-client (~> 1.6.1)
-    daemons (1.1.9)
+    daemons (1.2.2)
     devise (3.4.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
@@ -119,7 +119,7 @@ GEM
       activemodel
     erubis (2.7.0)
     eventmachine (1.0.7)
-    execjs (2.4.0)
+    execjs (2.5.0)
     factory_girl (4.5.0)
       activesupport (>= 3.0.0)
     factory_girl_rails (4.5.0)
@@ -127,10 +127,10 @@ GEM
       railties (>= 3.0.0)
     font-awesome-rails (4.3.0.0)
       railties (>= 3.2, < 5.0)
-    foundation-rails (5.5.1.0)
+    foundation-rails (5.5.1.1)
       railties (>= 3.1.0)
       sass (>= 3.3.0, < 3.5)
-    globalid (0.3.3)
+    globalid (0.3.4)
       activesupport (>= 4.1.0)
     hike (1.2.3)
     i18n (0.7.0)
@@ -159,7 +159,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    pry-rails (0.3.3)
+    pry-rails (0.3.4)
       pry (>= 0.9.10)
     rack (1.6.0)
     rack-test (0.6.3)
@@ -177,11 +177,11 @@ GEM
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.5)
+    rails-dom-testing (1.0.6)
       activesupport (>= 4.2.0.beta, < 5.0)
       nokogiri (~> 1.6.0)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.1)
+    rails-html-sanitizer (1.0.2)
       loofah (~> 2.0)
     railties (4.2.0)
       actionpack (= 4.2.0)
@@ -195,9 +195,9 @@ GEM
     rest-client (1.6.8)
       mime-types (~> 1.16)
       rdoc (>= 2.4.2)
-    rspec-core (3.2.1)
+    rspec-core (3.2.3)
       rspec-support (~> 3.2.0)
-    rspec-expectations (3.2.0)
+    rspec-expectations (3.2.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.2.0)
     rspec-its (1.2.0)
@@ -216,13 +216,13 @@ GEM
       rspec-support (~> 3.2.0)
     rspec-support (3.2.2)
     sass (3.4.13)
-    sass-rails (5.0.1)
+    sass-rails (5.0.3)
       railties (>= 4.0.0, < 5.0)
       sass (~> 3.1)
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (~> 1.1)
-    slim (3.0.2)
+    slim (3.0.3)
       temple (~> 0.7.3)
       tilt (>= 1.3.3, < 2.1)
     slim-rails (3.0.1)
@@ -250,7 +250,7 @@ GEM
       eventmachine (~> 1.0)
       rack (~> 1.0)
     thor (0.19.1)
-    thread_safe (0.3.4)
+    thread_safe (0.3.5)
     tilt (1.4.1)
     tinymce-rails (4.1.6)
       railties (>= 3.1.1)
diff --git a/app/models/cmtool/yml_file.rb b/app/models/cmtool/yml_file.rb
index b79d8a3..2662420 100644
--- a/app/models/cmtool/yml_file.rb
+++ b/app/models/cmtool/yml_file.rb
@@ -9,7 +9,7 @@ module Cmtool
     def self.all_as_object
       all.each.with_object Hash.new do |yml_file, obj|
         yml_obj = YAML.load(yml_file.body) rescue nil
-        obj.merge!( yml_obj ) if yml_obj
+        obj.deep_merge!( yml_obj ) if yml_obj
       end
     end
   end
diff --git a/spec/models/cmtool/yml_file_spec.rb b/spec/models/cmtool/yml_file_spec.rb
new file mode 100644
index 0000000..16f2d96
--- /dev/null
+++ b/spec/models/cmtool/yml_file_spec.rb
@@ -0,0 +1,28 @@
+require 'spec_helper'
+
+describe Cmtool::YmlFile do
+  describe ".all_as_object" do
+    it "combines the files using deep merge" do
+      described_class.create body: <<-YML.strip_heredoc
+      nl:
+        android:
+          link: <a>l</a>
+      YML
+      described_class.create body: <<-YML.strip_heredoc
+      nl:
+        android:
+          title: Mozo at Play store
+      YML
+
+      result = described_class.all_as_object
+      result.should =~ {
+        "nl"=> {
+          "android" => {
+            "title"=>"Mozo at Play store",
+            "link"=>"<a>l</a>"
+          }
+        }
+      }
+    end
+  end
+end