diff --git a/_plays/05.md b/_plays/05.md
index 2597852..917b2d4 100644
--- a/_plays/05.md
+++ b/_plays/05.md
@@ -17,7 +17,7 @@ To improve our chances of success when contracting out development work, we need
 7. Contract allows us to use tools, services, and hosting from vendors with a variety of pricing models, including fixed fees and variable service-based models like “pay-for-what-you-use” services
 8. Contract specifies a warranty period where defects uncovered by the public are addressed by the vendor(s) at no additional cost to the government
 9. Contract includes a transition of services period and transition-out plan
-
+10. Use open source.
 
 
 #### key questions