diff --git a/README.md b/README.md
index 751edcb..4c69f04 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Version 4.0 (V4)
+# Version 4.1 (V4.1)
 
 This describes version 4.0 of the Pact file format, as well as associated behaviour for matching and verifying them. 
 For all the changes, refer to the RFC [#71](https://github.com/pact-foundation/pact-specification/issues/71)
@@ -686,6 +686,7 @@ a JSON Path like expression.
 | RandomBoolean          | V3           | `{"type": "RandomBoolean"}`                                                                                  | Generates a random boolean value                                                                                                                                                                                                                                                                        |
 | ProviderState          | V4           | `{"expression": "/api/user/${id}", type": "ProviderState"}`                                         | Generates a value that is looked up from the provider state context using the given expression                                                                                                                                                                                                          |
 | MockServerURL          | V4           | `{"regex": ".*\\/(orders\\/\\d+)$", "example": "http://localhost:1234/orders/5678", type": "MockServerURL"}` | Generates a URL with the mock server as the base URL.                                                                                                                                                                                                                                                   |
+| RandomArray            | V4.1         | `{"max": 299, "min": 200, "type": "RandomArray"}`                                                            | Generates a random array with number of items between the min and max values (inclusive)                                                                                                                                                                                                                                   |
 
 #### Comments