diff --git a/README.MD b/README.MD
index 95793bfa..6d3d32e5 100644
--- a/README.MD
+++ b/README.MD
@@ -110,6 +110,9 @@ Below is a table of all namespaces within the library and what they represent
 | --- | --- |
 | `SabreTools.Serialization.CrossModel` | Convert between models; mainly used for metadata files converting to and from a common, `Dictionary`-based model |
 | `SabreTools.Serialization.Deserializers` | Convert from external sources to models |
+| `SabreTools.Serialization.Extensions` | Extension methods for both models and wrappers |
+| `SabreTools.Serialization.Interfaces` | Interfaces used commonly throughout the library |
+| `SabreTools.Serialization.ObjectIdentifier` | Object Identifier (OID) parsing |
 | `SabreTools.Serialization.Printers` | Export model information in a formatted manner |
 | `SabreTools.Serialization.Serializers` | Convert from models to external sources |
 | `SabreTools.Serialization.Wrappers` | Classes that wrap serialization and models to allow for including extension properties |