diff --git a/model-engine/model_engine_server/domain/use_cases/model_endpoint_use_cases.py b/model-engine/model_engine_server/domain/use_cases/model_endpoint_use_cases.py
index ea846643..a1c48a1d 100644
--- a/model-engine/model_engine_server/domain/use_cases/model_endpoint_use_cases.py
+++ b/model-engine/model_engine_server/domain/use_cases/model_endpoint_use_cases.py
@@ -125,6 +125,10 @@ def validate_deployment_resources(
             f"Requested max workers {max_workers} too high"
         )
 
+    if max_workers is not None and max_workers == 0:
+        raise EndpointResourceInvalidRequestException(
+            "Max workers is 0. The endpoint is deprecated."
+        )
 
 def validate_concurrent_requests_per_worker(
     concurrent_requests_per_worker: Optional[int],