diff --git a/README.md b/README.md
index 5a639c7f..c57dd7e8 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Toolkit components that will simplify your iOS app development with ArcGIS Runti
 * [Scalebar](Documentation/Scalebar)
 
 ## Requirements
-* [ArcGIS Runtime SDK for iOS](https://developers.arcgis.com/en/ios/) 100.1 (or higher)
+* [ArcGIS Runtime SDK for iOS](https://developers.arcgis.com/en/ios/) 100.2.1 (or higher)
 * Xcode 9 (or higher)
 * Apple iOS SDK 10 (or higher)