diff --git a/constants.py b/constants.py
index 7d9c2ab..eb88737 100644
--- a/constants.py
+++ b/constants.py
@@ -1,6 +1,6 @@
 class Constants:
 	PROJECT_NAME = 'stronghold'
-	VERSION = '1.2'
+	VERSION = '1.2.4.3'
 	AUTHOR_GITHUB = 'alichtman'
 	AUTHOR_FULL_NAME = 'Aaron Lichtman'
 	DESCRIPTION = "Securely configure your Mac from the terminal."
diff --git a/setup.cfg b/setup.cfg
index fa01d69..5561705 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,9 +2,4 @@
 description-file = README.md
 
 [bdist_wheel]
-# This flag says to generate wheels that support both Python 2 and Python
-# 3. If your code will not run unchanged on both Python 2 and 3, you will
-# need to generate separate wheels for each Python version that you
-# support.
-# TODO: Add support for Python 2?
-universal=1
+python-tag = py3
diff --git a/setup.py b/setup.py
index b918da6..ab2cefe 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,6 @@
-"""A setuptools based setup module for stronghold.
-See:
+"""
+A setuptools based setup module for stronghold.
+
 https://packaging.python.org/en/latest/distributing.html
 https://github.com/pypa/sampleproject
 """
@@ -10,6 +11,12 @@ from setuptools import setup
 from codecs import open
 from os import path
 from constants import Constants
+import sys
+
+# Check if Python version is above 3 for manually running setup.py
+if sys.version_info[:3] < (3, 0, 0):
+    sys.stdout.write("Requires Python 3 to run.")
+    sys.exit(1)
 
 here = path.abspath(path.dirname(__file__))
 
@@ -17,52 +24,33 @@ here = path.abspath(path.dirname(__file__))
 with open(path.join(here, 'README.md'), encoding='utf-8') as f:
     long_description = f.read()
 
-# Arguments marked as "Required" below must be included for upload to PyPI.
-# Fields marked as "Optional" may be commented out.
-
 setup(
-    # $ pip install stronghold
-    # https://pypi.org/project/stronghold/
-    name=Constants.PROJECT_NAME,  # Required
+    name=Constants.PROJECT_NAME,
 
-    # Versions should comply with PEP 440:
-    # https://www.python.org/dev/peps/pep-0440/
+    # Versions should comply with PEP 440: https://www.python.org/dev/peps/pep-0440/
     #
     # For a discussion on single-sourcing the version across setup.py and the
     # project code, see https://packaging.python.org/en/latest/single_source_version.html
-    version=Constants.VERSION,  # Required
+    version=Constants.VERSION,
 
-    # This is a one-line description or tagline of what your project does.
-    # Corresponds to the "Summary" metadata field:
-    # https://packaging.python.org/specifications/core-metadata/#summary
-    description=Constants.DESCRIPTION,  # Required
+    # Python version check for pip installs.
+    python_requires=">=3",
+
+    # One-line description of the project.
+    description=Constants.DESCRIPTION,
     long_description_content_type="text/markdown",
-
-    # Optional longer description of your project that represents
-    # the body of text which users will see when they visit PyPI.
-    #
-    # Often, this is the same as your README, so you can just read it in from
-    # that file directly (as we have already done above)
-    #
-    # This field corresponds to the "Description" metadata field:
-    # https://packaging.python.org/specifications/core-metadata/#description-optional
     long_description=long_description,
     url=Constants.URL,
     author=Constants.AUTHOR_GITHUB,
-    # author_email=Constants.AUTHOR_EMAIL,
     author_email="aaronlichtman@gmail.com",
 
     # Classifiers help users find your project by categorizing it.
-    #
-    # For a list of valid classifiers, see
     # https://pypi.python.org/pypi?%3Aaction=list_classifiers
     classifiers=[  # Optional
         'Development Status :: 5 - Production/Stable',
-
         'Intended Audience :: Developers',
         'Intended Audience :: End Users/Desktop',
         'Intended Audience :: System Administrators',
-
         'Topic :: Security',
         'Topic :: System :: Installation/Setup',
         'Topic :: System :: Logging',
@@ -71,29 +59,21 @@ setup(
         'Topic :: System :: Networking :: Firewalls',
         'Topic :: System :: Operating System',
         'Topic :: Utilities',
-
         'Operating System :: MacOS',
-
         'Natural Language :: English',
-
         'License :: OSI Approved :: MIT License',
-
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
     ],
 
-    # This field adds keywords for your project which will appear on the
-    # project page. What does your project relate to?
-    #
-    # Note that this is a string of words separated by whitespace, not a list.
-    keywords='fortify stronghold system configuration security firewall hardening logging secure',  # Optional
+    # This field adds keywords for your project
+    # String of words separated by whitespace, not a list.
+    keywords='fortify stronghold system configuration security firewall hardening secure',  # Optional
 
     # Just want to distribute a single Python file, so using `py_modules`
-    # argument as follows, which will expect a file called
-    # `stronghold.py` to exist:
-    #
+    # argument, which will expect a file called `stronghold.py` to exist:
     py_modules=[
         "stronghold",
         "constants"
@@ -106,9 +86,9 @@ setup(
     # For an analysis of "install_requires" vs pip's requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
     install_requires=[
-        'colorama>=0.3.9',
-        'inquirer>=2.2.0',
-        'Click'
+        'colorama',
+        'inquirer',
+        'click'
     ],
 
     # To provide executable scripts, use entry points in preference to the
@@ -123,12 +103,6 @@ setup(
         stronghold=stronghold:cli
     ''',
 
-    # entry_points={
-    #     'console_scripts': [
-    #         'stronghold=stronghold:main',
-    #     ],
-    # },
-
     # List additional URLs that are relevant to your project as a dict.
     #
     # This field corresponds to the "Project-URL" metadata fields: