diff --git a/Dockerfile b/Dockerfile
index c1bfe0a..cb4451c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,9 @@
-# Use an official Python runtime as a parent image
-FROM python:3.7-slim
+FROM python:3.9-slim
 
-# Set the working directory to /app
 WORKDIR /app
 
-# Copy the current directory contents into the container at /app
 COPY . /app
 
-# Install any needed packages specified in requirements.txt
 RUN pip install --trusted-host pypi.python.org -r /app/requirements.txt
-# Define environment variable
-ENV TOKEN X
 
-# Run app.py when the container launches
 CMD ["python", "-u", "SlashBot.py"]
\ No newline at end of file
diff --git a/SlashBot.py b/SlashBot.py
index 3d56f60..4ef9b8f 100644
--- a/SlashBot.py
+++ b/SlashBot.py
@@ -13,12 +13,11 @@ escaping = ('\\ ', '\\　')
 markdownEscape = lambda s: s.replace("_", "\\_").replace("*", "\\*").replace("[", "\\[").replace("`", "\\`")
 
 # Docker env
-if os.environ.get('TOKEN') and os.environ['TOKEN'] != 'X':
-    Token = os.environ['TOKEN']
-else:
+Token = os.environ.get('TOKEN')
+if not Token:
     raise Exception('no token')
 
-if os.environ.get('PROXY') and os.environ['PROXY'] != 'X':
+if os.environ.get('PROXY'):
     telegram_proxy = os.environ['PROXY']
     requests_proxies = {'all': os.environ['PROXY']}
 else: