diff --git a/src/soakdb3_api/models/crystal_well_model.py b/src/soakdb3_api/models/crystal_well_model.py
index 297a42b..4a552a0 100644
--- a/src/soakdb3_api/models/crystal_well_model.py
+++ b/src/soakdb3_api/models/crystal_well_model.py
@@ -13,8 +13,10 @@ class CrystalWellModel(BaseModel):
     """
 
     ID: Optional[str] = None
-    LabVisit: str
-    CrystalPlate: str
-    CrystalWell: str
-    EchoX: int
-    EchoY: int
+    LabVisit: Optional[str] = None
+    CrystalPlate: Optional[str] = None
+    CrystalWell: Optional[str] = None
+    EchoX: Optional[int] = None
+    EchoY: Optional[int] = None
+    ProteinName: Optional[str] = None
+    DropVolume: Optional[float] = None