diff --git a/main.py b/main.py
index 8166030..10b6860 100644
--- a/main.py
+++ b/main.py
@@ -2,6 +2,7 @@
 # @Date    : 2016/9/9
 # @Author  : hrwhisper
 import codecs
+import json
 import re
 import os
 import multiprocessing
@@ -14,7 +15,7 @@
 
 
 class UCASCourse(object):
-    def __init__(self, time_out=5):
+    def __init__(self, time_out=5, check_version=True):
         self.__BEAUTIFULSOUPPARSE = 'html.parser'  # or use 'lxml'
         self.semester = None
         self.save_base_path, self.semester = UCASCourse._read_info_from_file()
@@ -25,6 +26,17 @@ def __init__(self, time_out=5):
         self.to_download = []
         self.lock = multiprocessing.Lock()
         self._time_out = time_out
+        self.version = '1.4'
+        self.check_version = check_version
+
+    def _check_version(self):
+        r = requests.get('https://api.github.com/repos/youqingxiaozhua/Ucas_course_ppt_auto_download/releases/latest')
+        github_latest = json.loads(r.text)
+        version = github_latest['name']
+        version_note = github_latest['body']
+        if version != self.version:
+            print('\nA new version (v%s: %s) have been released, please download from this link:' % (github_latest, version_note))
+            print('https://github.com/youqingxiaozhua/Ucas_course_ppt_auto_download/releases\n')
 
     def _init_session(self):
         t = LoginUCAS().login_sep()
@@ -137,6 +149,8 @@ def _download_file(self, param):
                 print('{dic_name}  >> {sub_directory} Download a file'.format(**locals()))
 
     def start(self):
+        if self.check_version:
+            self._check_version()
         self._parse_course_list()
         self._get_all_resource_url()
         self._start_download()
diff --git a/readme.md b/readme.md
index fadcdf1..9c0277e 100644
--- a/readme.md
+++ b/readme.md
@@ -65,6 +65,8 @@ private中，各行表示意义如下：
 - **觉得好用点个star吧~**
 
 ## 更新说明
+- 2020-2-14 新增升级提示
+- 2020-2-14 适配课程网站升级为HTTPS
 - 更新适配到2019年秋季
 - 新增登陆网址，不用验证码
 - 修复因为微软CMD下编码不一致导致程序crash