diff --git a/src/Sportradar.OddsFeed.SDK.Entities/packages.config b/src/Sportradar.OddsFeed.SDK.Entities/packages.config
index bef7ec3..e278178 100644
--- a/src/Sportradar.OddsFeed.SDK.Entities/packages.config
+++ b/src/Sportradar.OddsFeed.SDK.Entities/packages.config
@@ -32,7 +32,7 @@
   <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.ValueTuple" version="4.5.0" targetFramework="net45" />