diff --git a/.travis.yml b/.travis.yml
index bf2d05bb1..dc316d890 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,8 +16,8 @@ matrix:
       env: TOXENV=py35
     - python: "3.6"
       env: TOXENV=py36
-    # - python: "3.6-dev"
-    #   env: TOXENV=py36
+    - python: "3.7-dev"
+      env: TOXENV=py37
   # allow_failures:
   #   - python: "3.5"
   #     env: TOXENV=typing
diff --git a/tox.ini b/tox.ini
index 86acefe9b..69aa851b1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py35, py36, lint, requirements, typing
+envlist = py35, py36, py37, lint, requirements, typing
 skip_missing_interpreters = True
 
 [testenv]