diff --git a/.travis.yml b/.travis.yml
index be42ca56..711a880a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,20 +1,9 @@
 language: python
-
-matrix:
-  include:
-    - python: 3.4
-      dist: trusty
-      sudo: false
-    - python: 3.5
-      dist: trusty
-      sudo: false
-    - python: 3.6
-      dist: trusty
-      sudo: false
-    - python: 3.7
-      dist: xenial
-      sudo: true
-
+python:
+  - : 3.5
+  - : 3.6
+  - : 3.7
+dist: xenial
 services:
  - docker
 install: