diff --git a/sms/src/vonage_sms/requests.py b/sms/src/vonage_sms/requests.py
index b06c832a..3b72560c 100644
--- a/sms/src/vonage_sms/requests.py
+++ b/sms/src/vonage_sms/requests.py
@@ -41,6 +41,8 @@ class SmsMessage(BaseModel):
             requirements when sending an SMS to specific countries.
         content_id (str, Optional): A string parameter that satisfies regulatory
             requirements when sending an SMS to specific countries.
+        trusted_sender (bool, Optional): overrides, on a per-message basis, any 
+            protections set up via Fraud Defender
     """
 
     to: str
@@ -67,6 +69,7 @@ class SmsMessage(BaseModel):
     account_ref: Optional[str] = Field(None, serialization_alias='account-ref')
     entity_id: Optional[str] = Field(None, serialization_alias='entity-id')
     content_id: Optional[str] = Field(None, serialization_alias='content-id')
+    trusted_sender: Optional[bool] = Field(None, serialization_alias="trusted_sender")
 
     @field_validator('body', 'udh')
     @classmethod
diff --git a/sms/tests/test_sms.py b/sms/tests/test_sms.py
index 46d5da78..95b142c0 100644
--- a/sms/tests/test_sms.py
+++ b/sms/tests/test_sms.py
@@ -38,6 +38,7 @@ def test_create_valid_SmsMessage():
         'client_ref': 'ref123',
         'type': 'binary',
         'ttl': 3000000,
+        'trusted_sender': True,
         'status_report_req': True,
         'callback': 'https://example.com/callback',
         'message_class': 0,