diff --git a/.travis.yml b/.travis.yml
index 982f977..6a82e93 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,6 @@ python:
   - "3.5"
   - "3.6"
 install:
-  - pip install -e .
+  - pip install -e .[dev]
 
 script: nosetests
\ No newline at end of file
diff --git a/appveyor.yml b/appveyor.yml
index 9b9a029..47aad33 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,7 +11,7 @@ install:
   # We need wheel installed to build wheels
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
   - python --version
-  - pip install -e .
+  - pip install -e .[dev]
 
 build: off