diff --git a/Solutions/LUIS-CachingService/LUIS-CachingComponents/LuisCacheServer/packages.config b/Solutions/LUIS-CachingService/LUIS-CachingComponents/LuisCacheServer/packages.config
index 4a93194..c06f9b2 100644
--- a/Solutions/LUIS-CachingService/LUIS-CachingComponents/LuisCacheServer/packages.config
+++ b/Solutions/LUIS-CachingService/LUIS-CachingComponents/LuisCacheServer/packages.config
@@ -32,7 +32,7 @@
   <package id="Microsoft.Data.Edm" version="5.8.1" targetFramework="net46" />
   <package id="Microsoft.Data.OData" version="5.8.1" targetFramework="net46" />
   <package id="Microsoft.Net.Compilers" version="2.7.0" targetFramework="net46" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net46" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net46" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net46" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net46" />
   <package id="Microsoft.WindowsAzure.ConfigurationManager" version="3.2.3" targetFramework="net46" />