diff --git a/source/CognitiveLocator.Xamarin/iOS/packages.config b/source/CognitiveLocator.Xamarin/iOS/packages.config
index d2d7968..c4dc2ac 100644
--- a/source/CognitiveLocator.Xamarin/iOS/packages.config
+++ b/source/CognitiveLocator.Xamarin/iOS/packages.config
@@ -66,7 +66,7 @@
   <package id="System.Spatial" version="5.8.3" targetFramework="xamarinios10" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="xamarinios10" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="xamarinios10" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="xamarinios10" />
   <package id="System.Threading" version="4.3.0" targetFramework="xamarinios10" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="xamarinios10" />
   <package id="System.Threading.Timer" version="4.3.0" targetFramework="xamarinios10" />