diff --git a/authentication/views.py b/authentication/views.py
index b68110c..14a1054 100644
--- a/authentication/views.py
+++ b/authentication/views.py
@@ -1,4 +1,3 @@
-# import json
 from django.contrib.auth import authenticate, login, logout
 from rest_framework import status, views
 from rest_framework.response import Response
diff --git a/requirements.txt b/requirements.txt
index 3fabf4f..dab3727 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 amqp==2.0.2
 celery==3.1.18
 simplejson==3.6.5
-ldap3
+ldap3==2.2.2
 django==1.7.8  # 1.8.2
 djangorestframework==3.2.3
 djangorestframework-bulk==0.2.1