diff --git a/NKC_WF/Web.config b/NKC_WF/Web.config
index 1533028..b499ad2 100644
--- a/NKC_WF/Web.config
+++ b/NKC_WF/Web.config
@@ -91,6 +91,10 @@
     </connectionStrings>
     <runtime>
         <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+			<dependentAssembly>
+				<assemblyIdentity name="DnsClient" publicKeyToken="4574BB5573C51424" culture="neutral"/>
+				<bindingRedirect oldVersion="0.0.0.0-1.3.1.0" newVersion="1.3.1.0"/>
+			</dependentAssembly>
             <dependentAssembly>
                 <assemblyIdentity name="System.Xml.XPath.XDocument" publicKeyToken="B03F5F7F11D50A3A" culture="neutral"/>
                 <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0"/>
@@ -438,4 +442,4 @@
             </handlers>
         </system.webServer>
     </location>
-</configuration>
\ No newline at end of file
+</configuration>