diff --git a/.travis.yml b/.travis.yml
index de545c835443d52ac75c6025d52665638c0f7563..4ffb18c2ce5fa06a16a2b53f731c4a8f76dc5ad1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,4 @@
+sudo: required
 os:
   - linux
   - osx