Updated to use the last version of mypy

syrusakbary · syrusakbary · commit 618f5149c940 · 2017-02-16T23:19:55.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -20,5 +20,5 @@ matrix:
     script: flake8
   - python: '3.5'
     script: |
-      pip install mypy-lang
+      pip install mypy
       mypy promise/  --check-untyped-defs
