diff --git a/sdk/python/feast/feature_server.py b/sdk/python/feast/feature_server.py
index 495d3bdff9..95e4ce8897 100644
--- a/sdk/python/feast/feature_server.py
+++ b/sdk/python/feast/feature_server.py
@@ -69,7 +69,7 @@ class MaterializeIncrementalRequest(BaseModel):
 
 
 class GetOnlineFeaturesRequest(BaseModel):
-    entities: List[Dict[str, Any]]
+    entities: Dict[str, List[Any]]
     feature_service: Optional[str] = None
     features: List[str] = Field(default_factory=list)
     full_feature_names: bool = False