diff --git a/.travis.yml b/.travis.yml
index fc2750bb..7cad45c9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: c
+sudo: required
 script: bash -ex .travis-ci.sh
 env:
   - OCAML_VERSION=4.00.1