diff --git a/.travis.yml b/.travis.yml
index d038f60..a16628d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,8 @@ env:
   - TEST_SHELLS=bash
   - TEST_SHELLS=zsh
 
+sudo: required
+
 install:
   - ./test/support/travisci_deps.sh