diff --git a/.travis.yml b/.travis.yml
index b1b8ad4..6002d8f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,7 @@ language: python
 python:
   - "3.4"
 before_install:
+  - sudo apt-get update
   - sudo apt-get install -y checkinstall build-essential
   - sudo apt-get install portaudio19-dev
   - sudo apt-get install libconfig-dev libvpx-dev check -qq