diff --git a/.travis.yml b/.travis.yml
index 274d14c1..f2dde5ae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,7 @@ install:
   - pip install -r requirements.txt
   - ln -s src pybitmessage  # tests environment
   - python setup.py install
+  - pip install libcap-dev python-prctl
 script:
   - python checkdeps.py
   - xvfb-run src/bitmessagemain.py -t