diff --git a/models/Union.py b/models/Union.py
index 0dcefb6..443a3e4 100644
--- a/models/Union.py
+++ b/models/Union.py
@@ -1,6 +1,6 @@
 from mongoengine import *
 from werkzeug.security import generate_password_hash
-from string import printable
+from string import ascii_letters, digits
 from random import choices
 
 
@@ -25,7 +25,7 @@ class Union(Document):
         user.username = "{}@root".format(self.legal_registration_number)
         user.user_group = group
         user.union = self
-        password = choices(printable, k=10)
+        password = ''.join(choices(ascii_letters+digits, k=10))
         user.password = generate_password_hash(password)
         # TODO: send password via mail or sms or nothing
         user.save()