diff --git a/.travis.yml b/.travis.yml
index 5c130d0..0092c14 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,16 @@
 language: python
 
+virtualenv:
+  system_site_packages: true
+
+before_install:
+  - SITE_PKG_DIR=$VIRTUAL_ENV/lib/python$TRAVIS_PYTHON_VERSION/site-packages
+  - rm -f $VIRTUAL_ENV/lib/python$TRAVIS_PYTHON_VERSION/no-global-site-packages.txt
+  - sudo apt-get install python-scipy
+
 install:
   - pip install -r requirements.txt
+  - pip install flake8
   - pip install coveralls
   - python setup.py develop
 
diff --git a/requirements.txt b/requirements.txt
index fc899d5..1d5cae2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1 @@
 numpy >= 1.4.1
-scipy >= 0.17.1
diff --git a/setup.py b/setup.py
index b45d701..af0e8fc 100644
--- a/setup.py
+++ b/setup.py
@@ -17,5 +17,5 @@
     long_description=README_TEXT,
     install_requires=INSTALL_REQUIRES,
     packages=find_packages(),
-    entry_points={'simphony': ['tools = tools']}, 
+    entry_points={'simphony': ['tools = tools']},
 )