diff --git a/models/head_icon.py b/models/head_icon.py
index fdb02eb..342f965 100644
--- a/models/head_icon.py
+++ b/models/head_icon.py
@@ -1,6 +1,6 @@
 from typing import List, Optional
 
-from pydantic import BaseModel
+from pydantic import BaseModel, ConfigDict
 
 
 class HeadIcon(BaseModel):
@@ -24,6 +24,8 @@ def png(self) -> str:
 
 
 class ForHash(BaseModel):
+    model_config = ConfigDict(coerce_numbers_to_str=True, arbitrary_types_allowed=True)
+
     Hash: str