MAINT: CI

Author: larsoner

.travis.yml

@@ -23,7 +23,7 @@ matrix:
         - os: linux
           env: PYTHON_VERSION=3.5
                CONDA_DEPENDENCIES="numpy scipy matplotlib coverage pytest pytest-cov flake8"
-               PIP_DEPENDENCIES="codecov pytest-sugar nibabel imageio"
+               PIP_DEPENDENCIES="codecov pytest-sugar nibabel imageio imageio-ffmpeg"
 
         # OSX
         - os: osx