missing changes from comment in PR#25
diff --git a/source/overview/_requirements.rst b/source/overview/_requirements.rst
index b483cf4..92b1def 100644
--- a/source/overview/_requirements.rst
+++ b/source/overview/_requirements.rst
@@ -29,7 +29,7 @@
 
 -  Operating system:
 
-   -  Preferred: CentOS/RHEL 6.3+ or Ubuntu 12.04(.1)
+   -  Preferred: CentOS/RHEL 6.3+ or Ubuntu 14.04(.2)
 
 -  64-bit x86 CPU (more cores results in better performance)