diff --git a/.travis.yml b/.travis.yml
index 0c83a07..8c8ad20 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ python:
    - "3.6"
 
 install:
-   - pip install .
+   - pip install . --upgrade
    - pip install --upgrade pytest
 
 script: