diff --git a/.travis.yml b/.travis.yml
index 7e6a453..e0fbabe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,13 @@
+language: python
+python:
+  - "3.4"
+  - "3.5"
+  - "3.6"
+  - "3.6-dev"  # 3.6 development branch
+  - "3.7-dev"  # 3.7 development branch
+# command to install dependencies
+install:
+  - pip install -r requirements.txt
 deploy:
   provider: pypi
   user:
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..e69de29