diff --git a/README.md b/README.md
index 5bda4ed..2ea415f 100644
--- a/README.md
+++ b/README.md
@@ -500,16 +500,13 @@ You can use proxy for request. `apihelper.proxy` object will use by call `reques
 ```python
 from telebot import apihelper
 
-apihelper.proxy = {'http', 'http://10.10.1.10:3128'}
+apihelper.proxy = {'http':'http://10.10.1.10:3128'}
 ```
 
-If you want to use socket5 proxy you need install dependency `pip install requests[socks]`.
+If you want to use socket5 proxy you need install dependency `pip install requests[socks]` and make sure, that you have the latest version of `gunicorn`, `PySocks`, `pyTelegramBotAPI`, `requests` and `urllib3`.
 
 ```python
-proxies = {
-    'http': 'socks5://user:pass@host:port',
-    'https': 'socks5://user:pass@host:port'
-}
+apihelper.proxy = {'https':'socks5://userproxy:password@proxy_address:port'}
 ```
 
 
diff --git a/examples/webhook_examples/webhook_flask_echo_bot.py b/examples/webhook_examples/webhook_flask_echo_bot.py
index 92ffa21..d0327d7 100644
--- a/examples/webhook_examples/webhook_flask_echo_bot.py
+++ b/examples/webhook_examples/webhook_flask_echo_bot.py
@@ -7,6 +7,7 @@
 import flask
 import telebot
 import logging
+import time
 
 
 API_TOKEN = '<api_token>'
@@ -73,6 +74,8 @@ def echo_message(message):
 # Remove webhook, it fails sometimes the set if there is a previous webhook
 bot.remove_webhook()
 
+time.sleep(0.1)
+
 # Set webhook
 bot.set_webhook(url=WEBHOOK_URL_BASE+WEBHOOK_URL_PATH,
                 certificate=open(WEBHOOK_SSL_CERT, 'r'))
diff --git a/setup.py b/setup.py
index 1c5529a..1e76d03 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ def readme():
         return f.read()
 
 setup(name='pyTelegramBotAPI',
-      version='3.6.2',
+      version='3.6.3',
       description='Python Telegram bot api. ',
       long_description=readme(),
       author='eternnoir',
diff --git a/telebot/apihelper.py b/telebot/apihelper.py
index 1173aa3..ceda96c 100644
--- a/telebot/apihelper.py
+++ b/telebot/apihelper.py
@@ -105,7 +105,7 @@ def get_file_url(token, file_id):
 
 def download_file(token, file_path):
     url = FILE_URL.format(token, file_path)
-    result = _get_req_session().get(url)
+    result = _get_req_session().get(url, proxies=proxy)
     if result.status_code != 200:
         msg = 'The server returned HTTP {0} {1}. Response body:\n[{2}]' \
             .format(result.status_code, result.reason, result.text)
@@ -847,7 +847,7 @@ def answer_callback_query(token, callback_query_id, text=None, show_alert=None,
         payload['show_alert'] = show_alert
     if url:
         payload['url'] = url
-    if cache_time:
+    if cache_time is not None:
         payload['cache_time'] = cache_time
     return _make_request(token, method_url, params=payload, method='post')
 
@@ -856,7 +856,7 @@ def answer_inline_query(token, inline_query_id, results, cache_time=None, is_per
                         switch_pm_text=None, switch_pm_parameter=None):
     method_url = 'answerInlineQuery'
     payload = {'inline_query_id': inline_query_id, 'results': _convert_list_json_serializable(results)}
-    if cache_time:
+    if cache_time is not None:
         payload['cache_time'] = cache_time
     if is_personal:
         payload['is_personal'] = is_personal
@@ -953,7 +953,7 @@ def _convert_input_media(array):
 def _no_encode(func):
     def wrapper(key, val):
         if key == 'filename':
-            return '{0}={1}'.format(key, val)
+            return u'{0}={1}'.format(key, val)
         else:
             return func(key, val)
 
diff --git a/telebot/types.py b/telebot/types.py
index f996436..d958908 100644
--- a/telebot/types.py
+++ b/telebot/types.py
@@ -127,7 +127,6 @@ class Update(JsonDeserializable):
     def __init__(self, update_id, message, edited_message, channel_post, edited_channel_post, inline_query,
                  chosen_inline_result, callback_query, shipping_query, pre_checkout_query):
         self.update_id = update_id
-        self.edited_message = edited_message
         self.message = message
         self.edited_message = edited_message
         self.channel_post = channel_post
@@ -468,8 +467,10 @@ class Message(JsonDeserializable):
         if hasattr(self, "custom_subs"):
             for type in self.custom_subs:
                 _subs[type] = self.custom_subs[type]
+        utf16_text = self.text.encode("utf-16-le")
         html_text = ""
         def func(text, type=None, url=None, user=None):
+            text = text.decode("utf-16-le")
             if type == "text_mention":
                 type = "url"
                 url = "tg://user?id={0}".format(user.id)
@@ -483,16 +484,13 @@ class Message(JsonDeserializable):
 
         offset = 0
         for entity in self.entities:
-            if entity.type == "bot_command":
-                entity.offset -= 1
-                entity.length += 1
             if entity.offset > offset:
-                html_text += func(self.text[offset:entity.offset])
+                html_text += func(utf16_text[offset * 2 : entity.offset * 2])
                 offset = entity.offset
-            html_text += func(self.text[offset:offset + entity.length], entity.type, entity.url, entity.user)
+            html_text += func(utf16_text[offset * 2 : (offset + entity.length) * 2], entity.type, entity.url, entity.user)
             offset += entity.length
-        if offset < len(self.text):
-            html_text += func(self.text[offset:])
+        if offset * 2 < len(utf16_text):
+            html_text += func(utf16_text[offset * 2:])
         return html_text