diff --git a/check_nginx b/check_nginx
index 8b5513c..6b62ca7 100755
--- a/check_nginx
+++ b/check_nginx
@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 # check_nginx is a Nagios to monitor nginx statu
 # my blog: http://www.nginxs.com
@@ -6,12 +6,12 @@
 # MSN: yangzi2008@126.com
 
 import string
-import urllib2
+import urllib.request, urllib.error, urllib.parse
 import getopt
 import sys
 
 def usage():
-   print """check_nginx is a Nagios to monitor nginx status
+   print("""check_nginx is a Nagios to monitor nginx status
    Usage:
 
    check_nginx [-h|--help][-U|--url][-P|--path][-u|--user][-p|--passwd][-w|--warning][-c|--critical]
@@ -37,7 +37,7 @@ def usage():
             if dont't have password:
             ./check_nginx -U www.nginxs.com -P /status -w 1000 -c 2000
             if don't have path and password:
-            ./check_nginx -U www.nginxs.com -w 1000 -c 2000"""
+            ./check_nginx -U www.nginxs.com -w 1000 -c 2000""")
 
    sys.exit(3)
 
@@ -65,16 +65,16 @@ for name,value in options:
        critical = value
 try:
    if 'path' in dir():
-      req = urllib2.Request(url+path)
+      req = urllib.request.Request(url+path)
    else:
-      req = urllib2.Request(url)
+      req = urllib.request.Request(url)
    if 'user' in dir() and 'passwd' in dir():
-      passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
+      passman = urllib.request.HTTPPasswordMgrWithDefaultRealm()
       passman.add_password(None, url+path, user, passwd)
-      authhandler = urllib2.HTTPBasicAuthHandler(passman)
-      opener = urllib2.build_opener(authhandler)
-      urllib2.install_opener(opener)
-   response = urllib2.urlopen(req)
+      authhandler = urllib.request.HTTPBasicAuthHandler(passman)
+      opener = urllib.request.build_opener(authhandler)
+      urllib.request.install_opener(opener)
+   response = urllib.request.urlopen(req)
    the_page = response.readline()
    conn = the_page.split()
    ActiveConn = conn[2]
@@ -90,18 +90,18 @@ try:
    perfdata = 'ActiveConn:%s,reading:%s,writing:%s,waiting:%s' % (ActiveConn,reading,writing,waiting)
 
 except Exception:
-   print "NGINX STATUS unknown: Error while getting Connection"
+   print("NGINX STATUS unknown: Error while getting Connection")
    sys.exit(3)
 if 'warning' in dir() and 'critical' in dir():
    if ActiveConn >= warning:
-      print 'WARNING - %s|%s' % (output,perfdata)
+      print('WARNING - %s|%s' % (output,perfdata))
       sys.exit(2)
    elif ActiveConn >= critical:
-      print 'CRITICAL - %s|%s' % (output,perfdata)
+      print('CRITICAL - %s|%s' % (output,perfdata))
       sys.exit(1)
    else:
-      print 'OK - %s|%s' % (output,perfdata)
+      print('OK - %s|%s' % (output,perfdata))
       sys.exit(0)
 else:
-   print 'OK - %s|%s' % (output,perfdata)
+   print('OK - %s|%s' % (output,perfdata))
    sys.exit(0)
-- 
2.25.2