diff --git a/AppService/samples/GraphNotificationsWithObo/packages.config b/AppService/samples/GraphNotificationsWithObo/packages.config
index c0fc287..3ba2940 100644
--- a/AppService/samples/GraphNotificationsWithObo/packages.config
+++ b/AppService/samples/GraphNotificationsWithObo/packages.config
@@ -17,7 +17,7 @@
   <package id="Microsoft.IdentityModel.Tokens.Saml" version="5.2.1" targetFramework="net461" />
   <package id="Microsoft.IdentityModel.Xml" version="5.2.1" targetFramework="net461" />
   <package id="Microsoft.Net.Compilers" version="2.1.0" targetFramework="net461" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net461" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="4.0.0" targetFramework="net461" />
   <package id="Microsoft.Owin.Security" version="4.0.0" targetFramework="net461" />
   <package id="Microsoft.Owin.Security.ActiveDirectory" version="4.0.0" targetFramework="net461" />