diff --git a/django_leek/api.py b/django_leek/api.py
index f615843..8d185ff 100644
--- a/django_leek/api.py
+++ b/django_leek/api.py
@@ -7,6 +7,7 @@
 class Leek(object):
     def task(self, f, pool=None):
         pool_name = pool or f.__name__
+
         @wraps(f)
         def _offload(*args, **kwargs):
             return push_task_to_queue(f, pool_name=pool_name, *args, **kwargs)
diff --git a/django_leek/helpers.py b/django_leek/helpers.py
index 70d8253..f7cd175 100644
--- a/django_leek/helpers.py
+++ b/django_leek/helpers.py
@@ -1,4 +1,3 @@
-import datetime
 import pickle
 import base64
 
@@ -7,7 +6,6 @@
 
 def unpack(pickled_task):
     new_task = pickle.loads(base64.b64decode(pickled_task))
-    #assert isinstance(new_task, partial)
     return new_task
 
 
diff --git a/django_leek/run_failed_tasks.py b/django_leek/run_failed_tasks.py
index b7a3ef6..ae52612 100644
--- a/django_leek/run_failed_tasks.py
+++ b/django_leek/run_failed_tasks.py
@@ -1,8 +1,6 @@
 import pickle
 import base64
 import os
-import sys
-
 # environ settings variable, should be the same as in manage.py
 os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")
 os.environ["DJANGO_SETTINGS_MODULE"] = "mysite.settings"
diff --git a/django_leek/tests.py b/django_leek/tests.py
index 9c6eb26..74526b0 100644
--- a/django_leek/tests.py
+++ b/django_leek/tests.py
@@ -1,5 +1,3 @@
-import base64
-import pickle
 from unittest.mock import patch, MagicMock
 import socketserver
 
@@ -20,9 +18,11 @@ def test_keyboard_interrupt(self, serve_forever):
         serve_forever.side_effect = KeyboardInterrupt
         call_command('leek')
 
+
 def f():
     pass
 
+
 class TestServer(TestCase):
     def setUp(self):
         self.request = MagicMock()
diff --git a/django_leek/worker.py b/django_leek/worker.py
index 304b555..cf651bf 100644
--- a/django_leek/worker.py
+++ b/django_leek/worker.py
@@ -1,18 +1,8 @@
 #  Based on the Worker class from Python in a nutshell, by Alex Martelli
 import logging
-import os
-import sys
-import threading
-import queue
-
 
 import django
 
-
-from . import settings
-from . import helpers
-
-
 log = logging.getLogger(__name__)
 
 
@@ -29,7 +19,9 @@ def target(queue):
                 
             log.info('running task...')
             task()
-            #helpers.save_task_success(task)
+            # workaround to solve problems with django + psycopg2
+            # solution found here: https://stackoverflow.com/a/36580629/10385696
+            django.db.connection.close()
             log.info('...successfully')
         except Exception as e:
             log.exception("...task failed")