diff --git a/app/models/agents/dropbox_watch_agent.rb b/app/models/agents/dropbox_watch_agent.rb
index f24d2669..8db74a11 100644
--- a/app/models/agents/dropbox_watch_agent.rb
+++ b/app/models/agents/dropbox_watch_agent.rb
@@ -78,13 +78,13 @@ module Agents
         options = @options.deep_merge({ query: { list: true } })
         response = self.class.get("/metadata/auto#{to_watch}", options)
         raise ResourceNotFound.new(to_watch) if response.not_found?
-        JSON.parse(response)['contents'].map { |entry| slice_json(entry, :path, :rev, :modified) }
+        JSON.parse(response)['contents'].map { |entry| slice_json(entry, 'path', 'rev', 'modified') }
       end
 
       private
 
       def slice_json(json, *keys)
-        keys.each_with_object({}){|key, hash| hash[key] = json[key.to_s]}
+        keys.each_with_object({}){|key, hash| hash[key.to_s] = json[key.to_s]}
       end
     end
 
@@ -106,12 +106,12 @@ module Agents
 
       def calculate_diff
         @updated = @current.select do |current_entry|
-          previous_entry = find_by_path(@previous, current_entry[:path])
+          previous_entry = find_by_path(@previous, current_entry['path'])
           (current_entry != previous_entry) && !previous_entry.nil?
         end
 
         updated_entries = @updated + @previous.select do |previous_entry|
-          find_by_path(@updated, previous_entry[:path])
+          find_by_path(@updated, previous_entry['path'])
         end
 
         @added = @current - @previous - updated_entries
@@ -119,7 +119,7 @@ module Agents
       end
 
       def find_by_path(array, path)
-        array.find { |entry| entry[:path] == path }
+        array.find { |entry| entry['path'] == path }
       end
     end
 
diff --git a/spec/models/agents/dropbox_watch_agent_spec.rb b/spec/models/agents/dropbox_watch_agent_spec.rb
index f5634ad1..787f93db 100644
--- a/spec/models/agents/dropbox_watch_agent_spec.rb
+++ b/spec/models/agents/dropbox_watch_agent_spec.rb
@@ -113,15 +113,15 @@ describe Agents::DropboxWatchAgent do
   describe Agents::DropboxWatchAgent::DropboxDirDiff do
 
     let(:previous) { [
-      { path: '1.json', rev: '1' },
-      { path: '2.json', rev: '1' },
-      { path: '3.json', rev: '1' }
+      { 'path' => '1.json', 'rev' => '1' },
+      { 'path' => '2.json', 'rev' => '1' },
+      { 'path' => '3.json', 'rev' => '1' }
     ] }
 
     let(:current) { [
-      { path: '1.json', rev: '2' },
-      { path: '3.json', rev: '1' },
-      { path: '4.json', rev: '1' }
+      { 'path' => '1.json', 'rev' => '2' },
+      { 'path' => '3.json', 'rev' => '1' },
+      { 'path' => '4.json', 'rev' => '1' }
     ] }
 
     describe '#empty?' do
@@ -143,15 +143,15 @@ describe Agents::DropboxWatchAgent do
       subject(:diff_hash) { Agents::DropboxWatchAgent::DropboxDirDiff.new(previous, current).to_hash }
 
       it 'detects additions' do
-        expect(diff_hash[:added]).to eq [{ path: '4.json', rev: '1' }]
+        expect(diff_hash[:added]).to eq [{ 'path' => '4.json', 'rev' => '1' }]
       end
 
       it 'detects removals' do
-        expect(diff_hash[:removed]).to eq [ { path: '2.json', rev: '1' } ]
+        expect(diff_hash[:removed]).to eq [ { 'path' => '2.json', 'rev' => '1' } ]
       end
 
       it 'detects updates' do
-        expect(diff_hash[:updated]).to eq [ { path: '1.json', rev: '2' } ]
+        expect(diff_hash[:updated]).to eq [ { 'path' => '1.json', 'rev' => '2' } ]
       end
 
       context 'when the previous value is not defined' do
@@ -219,8 +219,8 @@ describe Agents::DropboxWatchAgent do
         it 'trims down the attributes of the response to our needs' do
           dir_list = Agents::DropboxWatchAgent::DropboxAPI.new(access_token).dir(dir_to_watch)
           expect(dir_list).to eq [
-            { path: "#{dir_to_watch}/1.json", rev: '1', modified: 'Mon, 11 Mar 2013 15:41:44 +0000' },
-            { path: "#{dir_to_watch}/2.json", rev: '4', modified: 'Mon, 12 Mar 2013 15:41:44 +0000' }
+            { 'path' => "#{dir_to_watch}/1.json", 'rev' => '1', 'modified' => 'Mon, 11 Mar 2013 15:41:44 +0000' },
+            { 'path' => "#{dir_to_watch}/2.json", 'rev' => '4', 'modified' => 'Mon, 12 Mar 2013 15:41:44 +0000' }
           ]
         end
       end