diff --git a/README.md b/README.md
index 059a942..4562a2e 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,12 @@ result += Page2.objects.search(query).annotate_score("_score").results()
 return sorted(results, key=lambda r: r._score)
 ```
 
+## NOT-Supported features
+
+1. `boosting` is not supported.
+2. `facet` is not supported.
+3. `autocomplete` is not supported.
+
 ## Sponsor
 
 [Tomas Walch](https://github.com/tjwalch)
-