diff --git a/roles/bootstrap-os/defaults/main.yml b/roles/bootstrap-os/defaults/main.yml
index cf40f692dde395f74b55d0dfd93230839e32f2ed..1bc47cf1e293bc06e1de6e82df08c4eb69fc3da1 100644
--- a/roles/bootstrap-os/defaults/main.yml
+++ b/roles/bootstrap-os/defaults/main.yml
@@ -2,3 +2,4 @@
 pypy_version: 2.4.0
 pip_python_modules:
   - httplib2
+  - six
\ No newline at end of file