diff --git a/UIC/UIC.Communication.Azure.CommunicationAgent/packages.config b/UIC/UIC.Communication.Azure.CommunicationAgent/packages.config
index 64f90a8..d4fba62 100644
--- a/UIC/UIC.Communication.Azure.CommunicationAgent/packages.config
+++ b/UIC/UIC.Communication.Azure.CommunicationAgent/packages.config
@@ -53,7 +53,7 @@
   <package id="System.Spatial" version="5.8.2" targetFramework="net452" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="net452" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net452" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net452" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net452" />
   <package id="System.Threading" version="4.3.0" targetFramework="net452" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net452" />
   <package id="System.Threading.Timer" version="4.3.0" targetFramework="net452" />