diff --git a/requirements.txt b/requirements.txt
index fbc78b2..1554657 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,37 +1,24 @@
-aiohttp==3.6.2
-alembic==1.4.3
-async-timeout==3.0.1
-attrs==20.2.0
-autopep8==1.5.4
-bcrypt==3.2.0
-certifi==2020.6.20
+-i https://pypi.org/simple
+alembic==1.4.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+bcrypt==3.2.0; python_version >= '3.6'
 cffi==1.14.3
-chardet==3.0.4
-click==7.1.2
-Flask==1.1.2
-Flask-Bcrypt==0.7.1
-Flask-Login==0.5.0
-Flask-Migrate==2.5.3
-Flask-SQLAlchemy==2.4.4
-Flask-Static-Digest==0.1.3
-Flask-WTF==0.14.3
-idna==2.10
-itsdangerous==1.1.0
-Jinja2==2.11.2
-Mako==1.1.3
-MarkupSafe==1.1.1
-maxminddb==2.0.2
-multidict==4.7.6
-pycodestyle==2.6.0
-pycparser==2.20
-python-dateutil==2.8.1
+click==7.1.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+flask-bcrypt==0.7.1
+flask-login==0.5.0
+flask-migrate==2.5.3
+flask-sqlalchemy==2.4.4
+flask-static-digest==0.1.3
+flask-wtf==0.14.3
+flask==1.1.2
+itsdangerous==1.1.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+jinja2==2.11.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+mako==1.1.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+markupsafe==1.1.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+pycparser==2.20; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+python-dateutil==2.8.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 python-editor==1.0.4
 pytz==2020.1
-requests==2.24.0
-six==1.15.0
-SQLAlchemy==1.3.19
-toml==0.10.1
-urllib3==1.25.10
-Werkzeug==1.0.1
-WTForms==2.3.3
-yarl==1.6.0
+six==1.15.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+sqlalchemy==1.3.19; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+werkzeug==1.0.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+wtforms==2.3.3