diff --git a/setup.py b/setup.py
index 1c70539..54da293 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,6 @@
 import os
 import re
+import setuptools
 from setuptools import setup
 
 #Path of setup file to establish version
@@ -38,7 +39,7 @@ def readme():
         'License :: OSI Approved :: MIT License',
         'Intended Audience :: Science/Research',
         'Topic :: Scientific/Engineering :: Bio-Informatics',
-        'Programming Language :: Python :: 3.4'
+        'Programming Language :: Python '
       ],
       zip_safe=False,
       include_package_data=True)
diff --git a/uropa/__init__.py b/uropa/__init__.py
index 80c8b67..911557b 100644
--- a/uropa/__init__.py
+++ b/uropa/__init__.py
@@ -1 +1 @@
-__version__ = "3.1.1"
+__version__ = "3.1.2"
diff --git a/uropa/annotation.py b/uropa/annotation.py
index 60167a2..089fe52 100644
--- a/uropa/annotation.py
+++ b/uropa/annotation.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-
 """Contains code for the annotation process"""
 import pysam
 from functools import reduce
diff --git a/uropa/uropa.py b/uropa/uropa.py
index 27289a5..0794ef4 100644
--- a/uropa/uropa.py
+++ b/uropa/uropa.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-# coding: utf-8
 """
 uropa.py: UROPA - Universal RObust Peak Annotator
 
@@ -9,7 +7,6 @@
 @email: mario.looso@mpi-bn.mpg.de
 """
 
-
 import os
 import sys
 import json
@@ -25,9 +22,9 @@
 import pysam
 
 #Import internal functions
-from uropa.utils import *
-from uropa.annotation import *
-from uropa import __version__ as VERSION
+from .utils import *
+from .annotation import *
+from .__init__ import __version__ as VERSION
 
 def restricted_float(f, f_min, f_max):
     f = float(f)
diff --git a/uropa/utils.py b/uropa/utils.py
index 4b9867e..c187ed2 100644
--- a/uropa/utils.py
+++ b/uropa/utils.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 """Contains helper functions for UROPA """
 
 import json