diff --git a/.travis.yml b/.travis.yml
index 29c5f8095..eec8bfb3e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
+os: linux
 language: python
-matrix:
+jobs:
   include:
     - python: "3.5"
     - python: "3.6"