diff --git a/Hippolyte.podspec b/Hippolyte.podspec
index cd6ad4d..f7e0702 100644
--- a/Hippolyte.podspec
+++ b/Hippolyte.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name               = "Hippolyte"
-  s.version            = "1.3.1"
+  s.version            = "1.4.0"
   s.swift_version      = "5.0"
   s.summary            = "HTTP Stubbing in Swift"
                       
diff --git a/README.md b/README.md
index cbc5842..6056fdf 100644
--- a/README.md
+++ b/README.md
@@ -130,6 +130,12 @@ func testStub() throws {
 }
 ```
 
+### Delegate
+
+You can add an optional `ResponseDelegate` into the mix to be notified when a response is mocked by Hippolyte. It has only one method `onResponse`.
+
+### Teardown
+
 Remember to tear down stubbing in your tests:
 
 ```swift