diff --git a/Installation.md b/Installation.md
index a922ede..69abe0a 100644
--- a/Installation.md
+++ b/Installation.md
@@ -1,6 +1,8 @@
 How to install OpenDroneMap
 
-Requires Ubuntu 12.04 or 14.04.
+Prerequisites: 
+- Requires Ubuntu 12.04 or 14.04.
+- Highly recommended to have at least 4GB of RAM 
 
 Install Git tools