diff --git a/clear_contest.py b/clear_contest.py
index 5fc5996..6b07c16 100755
--- a/clear_contest.py
+++ b/clear_contest.py
@@ -1,6 +1,4 @@
 #!/usr/bin/env python
-from __future__ import print_function
-
 # prepare environment
 import sys
 sys.path.append("..")
diff --git a/contest/apps.py b/contest/apps.py
index b77a40b..dbe17cd 100644
--- a/contest/apps.py
+++ b/contest/apps.py
@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 from django.apps import AppConfig
 
 
diff --git a/contest/models.py b/contest/models.py
index a612032..674b004 100644
--- a/contest/models.py
+++ b/contest/models.py
@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 import datetime
 
 from django.contrib.auth.models import AbstractUser
diff --git a/contest/validators.py b/contest/validators.py
index fecd7ed..75f5730 100644
--- a/contest/validators.py
+++ b/contest/validators.py
@@ -1,7 +1,6 @@
 from django.core import validators
-from django.utils import six
 from django.utils.deconstruct import deconstructible
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 import re
 
@@ -13,7 +12,8 @@ class CallUsernameValidator(validators.RegexValidator):
         'Enter a valid Callsign as Username, ALL UPPERCASE, if needed with -1 / -2,'
         'e.g. DL7BST, DN1BER-1, DL/OE1FOO.'
     )
-    flags = re.ASCII if six.PY3 else 0
+    flags = re.ASCII
+
 
 @deconstructible
 class CallLogValidator(validators.RegexValidator):
@@ -22,4 +22,4 @@ class CallLogValidator(validators.RegexValidator):
         'Enter a valid callsign, ALL UPPERCASE, if needed with -1 / -2,'
         'e.g. DL7BST, DN1BER-1, DL/OE1FOO, DN1FTW-1/p'
     )
-    flags = re.ASCII if six.PY3 else 0
+    flags = re.ASCII