diff --git a/MIGRATION.md b/MIGRATION.md
index f343028b5..791a6f125 100644
--- a/MIGRATION.md
+++ b/MIGRATION.md
@@ -15,6 +15,12 @@
 
 * `FromRequest::Result` has to implement `Into<Reply<Self>>`
 
+* `HttpRequest::query()` is deprecated. Use `Query` extractor.
+
+   ```rust
+   let q = Query::<HashMap<String, String>>::extract(req);
+   ```
+
 
 ## Migration from 0.4 to 0.5