diff --git a/.travis.yml b/.travis.yml
index 23dd5b1..c36dd89 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,12 @@
 language: python
-dist: xenial
+dist: bionic
 os:
   - linux
 python:
   - 3.7
   - 3.8
 install:
-  - pip install -e ".[dev]"
+  - pip install -U -I -e ".[dev]"
 script:
   - cd docs && make doctest && cd ..
   - pytest -v --cov . --cov-report xml:coverage.xml