diff --git a/lago_python_client/models/plan.py b/lago_python_client/models/plan.py
index c3c68bb..1f2e32e 100644
--- a/lago_python_client/models/plan.py
+++ b/lago_python_client/models/plan.py
@@ -32,6 +32,7 @@ class Plan(BaseModel):
     minimum_commitment: Optional[MinimumCommitment]
     usage_thresholds: Optional[UsageThresholds]
     tax_codes: Optional[List[str]]
+    cascade_updates: Optional[bool]
 
 
 class PlanResponse(BaseResponseModel):
diff --git a/tests/test_plan_client.py b/tests/test_plan_client.py
index 75ee4e4..d270f7d 100644
--- a/tests/test_plan_client.py
+++ b/tests/test_plan_client.py
@@ -63,6 +63,7 @@ def plan_object():
         trial_period=None,
         bill_charges_monthly=None,
         tax_codes=None,
+        cascade_updates=None,
     )