diff --git a/samples/MicroserviceDemo/applications/BackendAdminApp.Host/BackendAdminAppHostModule.cs b/samples/MicroserviceDemo/applications/BackendAdminApp.Host/BackendAdminAppHostModule.cs
index 13c4577cc0..cd7cd24231 100644
--- a/samples/MicroserviceDemo/applications/BackendAdminApp.Host/BackendAdminAppHostModule.cs
+++ b/samples/MicroserviceDemo/applications/BackendAdminApp.Host/BackendAdminAppHostModule.cs
@@ -54,7 +54,6 @@ namespace BackendAdminApp.Host
                 })
                 .AddCookie("Cookies", options =>
                 {
-                    options.Cookie.Expiration = TimeSpan.FromDays(365);
                     options.ExpireTimeSpan = TimeSpan.FromDays(365);
                 })
                 .AddOpenIdConnect("oidc", options =>
diff --git a/samples/MicroserviceDemo/applications/PublicWebSite.Host/PublicWebSiteHostModule.cs b/samples/MicroserviceDemo/applications/PublicWebSite.Host/PublicWebSiteHostModule.cs
index 0843eae579..66ea6d174c 100644
--- a/samples/MicroserviceDemo/applications/PublicWebSite.Host/PublicWebSiteHostModule.cs
+++ b/samples/MicroserviceDemo/applications/PublicWebSite.Host/PublicWebSiteHostModule.cs
@@ -52,7 +52,6 @@ namespace PublicWebSite.Host
                 })
                 .AddCookie("Cookies", options =>
                 {
-                    options.Cookie.Expiration = TimeSpan.FromDays(365);
                     options.ExpireTimeSpan = TimeSpan.FromDays(365);
                 })
                 .AddOpenIdConnect("oidc", options =>