schema validation with pymongo and mongodb

I am using pymongo and creating a collection but it throw some issue when I am using

 "minimun": 2017,
 "maximum": 3017,

full code is

student_validator = {
  "$jsonSchema": {
    "bsonType": "object",
    "title": "Student Object Validaton",
    "required": ["address", "major", "name", "year"],
    "properties": {
      "name": {
        "bsonType": "string",
        "description": "'name' must be a string and is required"
      },
      "year": {
        "bsonType": "int",
        "minimun": 2017,
        "maximum": 3017,
        "description": "'year' must be an integer in [ 2017, 3017 ] and is required"
      },
      "gpa": {
        "bsonType": "boudle",
        "description": "'gpa' must be a double if the field exists"
      },
    }
  }
}
try:
  db.create_collection("student", validator=student_validator)
except Exception as e:
  print(e)

and error is

Unknown $jsonSchema keyword: minimun, full error: {'ok': 0.0, 'errmsg': 'Unknown $jsonSchema keyword: minimun', 'code': 9, 'codeName': 'FailedToParse'}

and code reference from mongodb docs
https://www.mongodb.com/docs/manual/core/schema-validation/specify-json-schema/#create-a-collection-with-validation.

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