diff --git a/BackTest/packages.config b/BackTest/packages.config
index dbf2a38..4178491 100644
--- a/BackTest/packages.config
+++ b/BackTest/packages.config
@@ -19,7 +19,7 @@
   <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="net461" />
   <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="net461" />
   <package id="System.Security.Cryptography.X509Certificates" 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.Timer" version="4.3.0" targetFramework="net461" />
   <package id="WebSocket4Net" version="0.15.2" targetFramework="net461" />