.travis.yml in xi-midi-0.1.3 vs .travis.yml in xi-midi-0.1.4

@@ -1,5 +1,8 @@
-sudo: false
+sudo: true
 language: ruby
 rvm:
   - 2.3.1
-before_install: gem install bundler -v 1.14.3
+before_install:
+  - sudo apt-get update -qq
+  - sudo apt-get install libasound2-dev
+  - gem install bundler -v 1.14.3