diff --git a/.travis.yml b/.travis.yml
index f1bd1014..cdb66351 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,4 +25,5 @@ install:
     - ./.travis/install.sh
 
 script:
+  - source ~/.venv/bin/activate
   - tox
diff --git a/.travis/install.sh b/.travis/install.sh
index 270c733a..0ed11410 100755
--- a/.travis/install.sh
+++ b/.travis/install.sh
@@ -14,4 +14,6 @@ if [[ "${TOXENV}" = pypy* ]]; then
 fi
 
 
+python -m virtualenv ~/.venv
+source ~/.venv/bin/activate
 pip install --upgrade tox