diff --git a/README.md b/README.md
index 33b7a76..d6c6e1e 100644
--- a/README.md
+++ b/README.md
@@ -110,7 +110,8 @@ Healthcare/IO is primarily intended to be used as a command line parser (for now
 
 1. By default it does NOT come with all {X12} Segments. 
 2. Does not support an easy way to rename attributes it parses
-3. For now can only read {x12} from disk
+3. Upgrade configuration may require dropping tables
+4. For now can only read {x12} from disk
 
 There is support for additional features and attributes available at [Healthcare/IO::Parser](https://healthcareio.the-phi.com/parser).