diff --git a/libraries/microsoft-agents-activity/microsoft_agents/activity/suggested_actions.py b/libraries/microsoft-agents-activity/microsoft_agents/activity/suggested_actions.py
index 5d1c4de1..f82ca3ec 100644
--- a/libraries/microsoft-agents-activity/microsoft_agents/activity/suggested_actions.py
+++ b/libraries/microsoft-agents-activity/microsoft_agents/activity/suggested_actions.py
@@ -1,6 +1,8 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
+from pydantic import Field
+
 from .card_action import CardAction
 from .agents_model import AgentsModel
 from ._type_aliases import NonEmptyString
@@ -17,5 +19,5 @@ class SuggestedActions(AgentsModel):
     :type actions: list[~microsoft_agents.activity.CardAction]
     """
 
-    to: list[NonEmptyString] = []
+    to: list[NonEmptyString] = Field(default_factory=list)
     actions: list[CardAction]