diff --git a/app/api/v1/schema/user.py b/app/api/v1/schema/user.py
index 385e46d..fd82297 100644
--- a/app/api/v1/schema/user.py
+++ b/app/api/v1/schema/user.py
@@ -10,4 +10,4 @@ class UserInfoIn(Schema):
 class UserInfoOut(Schema):
     nickname = String()
     avatar_id = String()
-    height = Float()
\ No newline at end of file
+    height = Float(allow_nan=True)
\ No newline at end of file
diff --git a/app/api/v1/user.py b/app/api/v1/user.py
index 57d1767..c234e93 100644
--- a/app/api/v1/user.py
+++ b/app/api/v1/user.py
@@ -48,6 +48,8 @@ def get_user_info():
     if user_dict:
         result.update(user_dict)
         if body_info_dict:
-            result['height'] = body_info_dict['height']
+            result['height'] = body_info_dict.get('height', None)
+        else:
+            result['height'] = None
 
     return result