diff --git a/.travis.yml b/.travis.yml
index cfd206b..b2411f5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,7 +9,7 @@ python:
   - "pypy"
 
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
-install: pip install coverage coveralls -r requirements.txt -r test-requirements.txt
+install: pip install coverage coveralls wheel -r requirements.txt -r test-requirements.txt
 
 # command to run tests, e.g. python setup.py test
 script: coverage run -m testtools.run discover
diff --git a/dev-requirements.txt b/dev-requirements.txt
new file mode 100644
index 0000000..f807df6
--- /dev/null
+++ b/dev-requirements.txt
@@ -0,0 +1,3 @@
+coverage
+sphinx
+wheel
diff --git a/requirements.txt b/requirements.txt
index 03ee8d5..640e3d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,2 @@
 requests
 six
-wheel==0.22.0