diff --git a/.travis.yml b/.travis.yml
index 312da5f..693456c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ python:
     - "3.4"
     - "3.5"
     - "3.6"
-    - "3.7"
+    - "3.7-dev"
     - "pypy"
     - "pypy3"
 install: "pip install -r requirements.txt"