diff --git a/src/Http/Authentication.Core/test/AuthenticationPropertiesTests.cs b/src/Http/Authentication.Core/test/AuthenticationPropertiesTests.cs
index 5e44974c56..c511208a3c 100644
--- a/src/Http/Authentication.Core/test/AuthenticationPropertiesTests.cs
+++ b/src/Http/Authentication.Core/test/AuthenticationPropertiesTests.cs
@@ -11,12 +11,12 @@ namespace Microsoft.AspNetCore.Authentication.Core.Test
         [Fact]
         public void Clone_Copies()
         {
-            var items = new Dictionary<string, string>
+            var items = new Dictionary<string, string?>
             {
                 ["foo"] = "bar",
             };
             var value = "value";
-            var parameters = new Dictionary<string, object>
+            var parameters = new Dictionary<string, object?>
             {
                 ["foo2"] = value,
             };
diff --git a/src/Http/Authentication.Core/test/AuthenticationTicketTests.cs b/src/Http/Authentication.Core/test/AuthenticationTicketTests.cs
index 9023735fac..b89c2c8a52 100644
--- a/src/Http/Authentication.Core/test/AuthenticationTicketTests.cs
+++ b/src/Http/Authentication.Core/test/AuthenticationTicketTests.cs
@@ -9,12 +9,12 @@ namespace Microsoft.AspNetCore.Authentication.Core.Test
         [Fact]
         public void Clone_Copies()
         {
-            var items = new Dictionary<string, string>
+            var items = new Dictionary<string, string?>
             {
                 ["foo"] = "bar",
             };
             var value = "value";
-            var parameters = new Dictionary<string, object>
+            var parameters = new Dictionary<string, object?>
             {
                 ["foo2"] = value,
             };