diff --git a/Factorial.Client/packages.config b/Factorial.Client/packages.config
index d3b2c28..aa0bf7b 100644
--- a/Factorial.Client/packages.config
+++ b/Factorial.Client/packages.config
@@ -36,7 +36,7 @@
   <package id="System.Runtime.Numerics" version="4.3.0" targetFramework="net45" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="net45" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net45" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net45" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net45" />
   <package id="System.Threading" version="4.3.0" targetFramework="net45" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net45" />
   <package id="System.Threading.Tasks.Extensions" version="4.4.0" targetFramework="net45" />