diff --git a/.travis.yml b/.travis.yml
index 4672257..bfd404d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ install:
   - conda info -a
   - conda env create -n test-environment -f environment.yml
   - source activate test-environment
-  - conda install pytest codecov -c conda-forge
+  - conda install pytest codecov pytest-cov -c conda-forge
   - pip install .
   
 script: