diff --git a/hr_zk_attendance/__manifest__.py b/hr_zk_attendance/__manifest__.py
index 1e4d670c2..b09e64933 100644
--- a/hr_zk_attendance/__manifest__.py
+++ b/hr_zk_attendance/__manifest__.py
@@ -21,7 +21,7 @@
 ###################################################################################
 {
     'name': 'Biometric Device Integration',
-    'version': '13.0.1.0.1',
+    'version': '13.0.1.0.2',
     'summary': """Integrating Biometric Device (Model: ZKteco uFace 202) With HR Attendance (Face + Thumb)""",
     'description': """This module integrates Odoo with the biometric device(Model: ZKteco uFace 202),odoo13,odd,hr,attendance""",
     'category': 'Generic Modules/Human Resources',
diff --git a/hr_zk_attendance/models/zkattendance.py b/hr_zk_attendance/models/zkattendance.py
index db00ef19e..3d34f1802 100644
--- a/hr_zk_attendance/models/zkattendance.py
+++ b/hr_zk_attendance/models/zkattendance.py
@@ -21,9 +21,6 @@
 ###################################################################################
 import binascii
 from struct import pack, unpack
-
-from gevent.hub import xrange
-
 from .zkconst import *
 
 
@@ -42,7 +39,7 @@ def getSizeAttendance(self):
 
 def reverseHex(hexstr):
     tmp = ''
-    for i in reversed( xrange( int(len(hexstr)/2) ) ):
+    for i in reversed(range(int(len(hexstr)/2))):
         tmp += hexstr[i*2:(i*2)+2]
     
     return tmp
@@ -74,7 +71,7 @@ def zkgetattendance(self):
         attendance = []  
         if len(self.attendancedata) > 0:
             # The first 4 bytes don't seem to be related to the user
-            for x in xrange(len(self.attendancedata)):
+            for x in range(len(self.attendancedata)):
                 if x > 0:
                     self.attendancedata[x] = self.attendancedata[x][8:]
             
diff --git a/hr_zk_attendance/models/zktime.py b/hr_zk_attendance/models/zktime.py
index 0095563c8..e2d69b78d 100644
--- a/hr_zk_attendance/models/zktime.py
+++ b/hr_zk_attendance/models/zktime.py
@@ -4,7 +4,7 @@ from .zkconst import *
 
 def reverseHex(hexstr):
     tmp = ''
-    for i in reversed( xrange( len(hexstr)/2 ) ):
+    for i in reversed(range(len(hexstr)/2)):
         tmp += hexstr[i*2:(i*2)+2]
     
     return tmp
diff --git a/hr_zk_attendance/models/zkuser.py b/hr_zk_attendance/models/zkuser.py
index 232d3f168..08756fd5d 100644
--- a/hr_zk_attendance/models/zkuser.py
+++ b/hr_zk_attendance/models/zkuser.py
@@ -65,7 +65,7 @@ def zkgetuser(self):
         users = {}
         if len(self.userdata) > 0:
             # The first 4 bytes don't seem to be related to the user
-            for x in xrange(len(self.userdata)):
+            for x in range(len(self.userdata)):
                 if x > 0:
                     self.userdata[x] = self.userdata[x][8:]