diff --git a/src/personal_info/db/schemas/person.py b/src/personal_info/db/schemas/person.py
index 5d3174c..9bebc51 100644
--- a/src/personal_info/db/schemas/person.py
+++ b/src/personal_info/db/schemas/person.py
@@ -73,7 +73,7 @@ class Document(BaseModel):
   series: str
   number: str
   issued_by: str
-  issued_at: Optional[str]
+  issued_at: Optional[date]
   attachments: Optional[List[str]
   ]
   class Config: