diff --git a/.travis.yml b/.travis.yml
index ab5fad2..3b79ece 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,7 +30,7 @@ install:
  # Testing dependencies
  - pip install flake8 coverage python-coveralls moto
  # Required library dependencies
- - pip install boto3 six
+ - pip install boto3 six fs
  # Optional library dependencies
  - pip install celery
  # The version of Django being tested against