diff --git a/cropmaps/clipper.py b/cropmaps/clipper.py
index a7384de..ffcc85d 100644
--- a/cropmaps/clipper.py
+++ b/cropmaps/clipper.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
 
 import os
 import logging
diff --git a/cropmaps/exceptions.py b/cropmaps/exceptions.py
index 399e8e4..418bfdc 100644
--- a/cropmaps/exceptions.py
+++ b/cropmaps/exceptions.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 class timeseriesError(Exception):
     """ Base class for exceptions in this module."""
diff --git a/cropmaps/sts.py b/cropmaps/sts.py
index ea6c96d..17cd17d 100644
--- a/cropmaps/sts.py
+++ b/cropmaps/sts.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 import logging
 import os
diff --git a/cropmaps/ts.py b/cropmaps/ts.py
index 32bb945..160771f 100644
--- a/cropmaps/ts.py
+++ b/cropmaps/ts.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
 
 import logging
 import datetime
diff --git a/cropmaps/vi.py b/cropmaps/vi.py
index 138fa9d..a68c4b8 100644
--- a/cropmaps/vi.py
+++ b/cropmaps/vi.py
@@ -1,5 +1,4 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
+
 import numpy as np
 # Ignoring all runtime, divided by zero numpy warnings
 np.seterr(all='ignore')
diff --git a/pyproject.toml b/pyproject.toml
index 63db246..cff41fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Topic :: Scientific/Engineering :: GIS",]
 
-requires-python = ">=3.6"
+requires-python = ">=3.9"
 dependencies = [
     "wheel",
     "creodias_finder@git+https://github.com/DHI-GRAS/creodias-finder",
diff --git a/setup.py b/setup.py
index 0add89f..abab296 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 import setuptools
 
-with open("README.md", "r") as fh:
+with open("README.md", "r", encoding="utf8") as fh:
     long_description = fh.read()
 
 with open('requirements.txt') as f: