diff --git a/Dockerfile b/Dockerfile
index bd54853..33afcd9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,7 @@ ENV LANG C.UTF-8
 ENV LC_ALL C.UTF-8
 ENV PYTHONDONTWRITEBYTECODE 1
 ENV PYTHONFAULTHANDLER 1
+ENV PYTHONUNBUFFERED=1
 
 FROM base AS python-build
 RUN pip install pipenv
diff --git a/main.py b/main.py
index afb4467..3134901 100755
--- a/main.py
+++ b/main.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3 -u
+#!/usr/bin/env python3
 
 import os
 import stat