Update Travis config

sdispater · sdispater · commit 3fca216c4985 · 2018-10-29T11:36:12.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -28,9 +28,11 @@ jobs:
       env: PENDULUM_EXTENSIONS=1
     - python: 3.6
       env: PENDULUM_EXTENSIONS=0
-    - python: 3.7-dev
+    - python: 3.7
+      dist: xenial
       env: PENDULUM_EXTENSIONS=1
-    - python: 3.7-dev
+    - python: 3.7
+      dist: xenial
       env: PENDULUM_EXTENSIONS=0
     - python: pypy
     - python: pypy3
