diff --git a/.travis.yml b/.travis.yml
index aa2af57bc..9a59cf7f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,9 @@ install:
 - conda config --set always_yes yes --set changeps1 no
 - conda update -q conda
 - conda info -a
-- conda install nodejs notebook
+- conda install nodejs notebook 'testpath<0.4'
+- which pip
+- pip --version
 - pip install --pre jupyterlab
 script:
 - yarn