diff --git a/.travis.yml b/.travis.yml
index 85c48986..1a306e54 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: julia
+dist: trusty  # update "python3.4-venv" below when updating
 os:
     - linux
     - osx
@@ -11,6 +12,7 @@ addons:
     packages:
       - python-numpy
       - python3-numpy
+      - python3.4-venv  # Ubuntu Trusty 14.04 does not have python3-venv
 env:
   global:
     - PYCALL_DEBUG_BUILD="yes"