diff --git a/README.md b/README.md
index 5cba5ed..62879c8 100644
--- a/README.md
+++ b/README.md
@@ -174,6 +174,10 @@ This is the available config options for making requests. Only the `url` is requ
     firstName: 'Fred'
   },
 
+  // `timeout` specifies the number of milliseconds before the request times out.
+  // If the request takes longer than `timeout`, the request will be aborted.
+  timeout: 1000,
+
   // `withCredentials` indicates whether or not cross-site Access-Control requests
   // should be made using credentials
   withCredentials: false, // default