diff --git a/setup.py b/setup.py
index 185a1e5..2083eed 100644
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@
     # 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='0.1.0',  # Required
+    version='0.9.0',  # Required
 
     # This is a one-line description or tagline of what your project does. This
     # corresponds to the "Summary" metadata field:
@@ -107,8 +107,6 @@
         # These classifiers are *not* checked by 'pip install'. See instead
         # 'python_requires' below.
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
     ],
@@ -138,7 +136,7 @@
     # https://packaging.python.org/guides/distributing-packages-using-setuptools/#python-requires
 
     #python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, <4',
-    python_requires='>=3, <4',
+    python_requires='>=3.6, <4',
 
     # This field lists other packages that your project depends on to run.
     # Any package you put here will be installed by pip when your project is