diff --git a/AzureZappyTranslater/TranslationAssistant.Business/TranslationAssistant.Business.csproj b/AzureZappyTranslater/TranslationAssistant.Business/TranslationAssistant.Business.csproj
index 6c93634..fceff22 100644
--- a/AzureZappyTranslater/TranslationAssistant.Business/TranslationAssistant.Business.csproj
+++ b/AzureZappyTranslater/TranslationAssistant.Business/TranslationAssistant.Business.csproj
@@ -226,7 +226,7 @@
       <Version>4.3.0</Version>
     </PackageReference>
     <PackageReference Include="System.Text.RegularExpressions">
-      <Version>4.3.0</Version>
+      <Version>4.3.1</Version>
     </PackageReference>
     <PackageReference Include="System.Threading">
       <Version>4.3.0</Version>