diff --git a/3.Client/GrainInterfaces/packages.config b/3.Client/GrainInterfaces/packages.config
index a97a1f6..47e7e05 100644
--- a/3.Client/GrainInterfaces/packages.config
+++ b/3.Client/GrainInterfaces/packages.config
@@ -48,7 +48,7 @@
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="net461" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="net461" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net461" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net461" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net461" />
   <package id="System.Threading" version="4.3.0" targetFramework="net461" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net461" />
   <package id="System.Threading.Timer" version="4.3.0" targetFramework="net461" />