diff --git a/.travis.yml b/.travis.yml
index bb62202..ba26c77 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,8 +5,9 @@ python:
   - "3.3"
   - "3.4"
   - "3.5"
+  - "nightly"
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
-install: pip install -r requirements.txt --use-mirrors
+install: pip install -r requirements.txt
 # command to run tests, e.g. python setup.py test
 script: nosetests --with-coverage --cover-package=flask_s3
 after_success: coveralls