diff --git a/Kudu.Core/Kudu.Core.csproj b/Kudu.Core/Kudu.Core.csproj
index d75282c2..18f6ef9f 100644
--- a/Kudu.Core/Kudu.Core.csproj
+++ b/Kudu.Core/Kudu.Core.csproj
@@ -29,7 +29,7 @@
     <PackageReference Include="Mercurial.Net" Version="1.1.1.607" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication" Version="2.2.0" />
     <PackageReference Include="Mono.Posix.NETStandard" Version="1.0.0" />
-    <PackageReference Include="System.Text.RegularExpressions" Version="4.3.0" />
+    <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
     <PackageReference Include="Microsoft.AspNetCore.Http.Extensions" Version="2.2.0" />
     <PackageReference Include="Microsoft.Azure.WebSites.DataProtection" Version="0.1.78-alpha" />
     <PackageReference Include="ncrontab" Version="3.3.0" />