diff --git a/README b/README
index bc47d2b..8a7d36d 100644
--- a/README
+++ b/README
@@ -56,6 +56,7 @@ KNOWN ISSUES
 - Model based
 
 - Bar Chart
+    * Modifying bar categories is not possible
 
 - Pie Chart
     * Slice labels drawn on top of the label arm