From 127bf6874896cfad47156087f702a6e4c437df3e Mon Sep 17 00:00:00 2001
From: westey <164392973+westey-m@users.noreply.github.com>
Date: Tue, 7 Oct 2025 23:02:19 +0100
Subject: [PATCH] Reference the correct JsonUtilities class (#1270)

---
 .../Microsoft.Agents.AI/ChatClient/ChatClientAgentThread.cs   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentThread.cs b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentThread.cs
index 4c93fe4295..baa36c0054 100644
--- a/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentThread.cs
+++ b/dotnet/src/Microsoft.Agents.AI/ChatClient/ChatClientAgentThread.cs
@@ -52,7 +52,7 @@ public class ChatClientAgentThread : AgentThread
         }
 
         var state = serializedThreadState.Deserialize(
-            AgentAbstractionsJsonUtilities.DefaultOptions.GetTypeInfo(typeof(ThreadState))) as ThreadState;
+            AgentJsonUtilities.DefaultOptions.GetTypeInfo(typeof(ThreadState))) as ThreadState;
 
         this.AIContextProvider = aiContextProviderFactory?.Invoke(state?.AIContextProviderState ?? default, jsonSerializerOptions);
 
@@ -170,7 +170,7 @@ public class ChatClientAgentThread : AgentThread
             AIContextProviderState = aiContextProviderState
         };
 
-        return JsonSerializer.SerializeToElement(state, AgentAbstractionsJsonUtilities.DefaultOptions.GetTypeInfo(typeof(ThreadState)));
+        return JsonSerializer.SerializeToElement(state, AgentJsonUtilities.DefaultOptions.GetTypeInfo(typeof(ThreadState)));
     }
 
     /// <inheritdoc/>