diff --git a/README.rst b/README.rst
index f1fd917ecfc136204e7bbc9f3047fe15e20dd29d..8db88f336d97e53f0a08fa1bd84d9b62951235d4 100644
--- a/README.rst
+++ b/README.rst
@@ -70,6 +70,8 @@ Release History
 +---------+------------+-------------------------------------+
 | Version | Date       | Description                         |
 +=========+============+=====================================+
+| 0.7     | 2019-10-20 | Require python 3.6 only             |
++---------+------------+-------------------------------------+
 | 0.6     | 2018-05-17 | Equivalent to Python 3.7.0rc1       |
 +---------+------------+-------------------------------------+
 | 0.5     | 2018-03-28 | Equivalent to Python 3.7.0b3        |
diff --git a/setup.py b/setup.py
index de8b49469b534115a4a7491fc55ea81b5197202e..e623a2a6db9fe81a6160048529d5fae2ce9dd906 100644
--- a/setup.py
+++ b/setup.py
@@ -1,23 +1,24 @@
 from setuptools import setup
 
-with open('README.rst') as readme:
+with open("README.rst") as readme:
     README = readme.read()
 
 setup(
-    name='dataclasses',
-    version='0.6',
-    description='A backport of the dataclasses module for Python 3.6',
+    name="dataclasses",
+    version="0.7",
+    description="A backport of the dataclasses module for Python 3.6",
     long_description=README,
-    url='https://github.com/ericvsmith/dataclasses',
-    author='Eric V. Smith',
-    author_email='eric@python.org',
-    license='Apache',
+    url="https://github.com/ericvsmith/dataclasses",
+    author="Eric V. Smith",
+    author_email="eric@python.org",
+    license="Apache",
     classifiers=[
-        'Development Status :: 4 - Beta',
-        'Intended Audience :: Developers',
-        'Topic :: Software Development :: Libraries :: Python Modules',
-        'License :: OSI Approved :: Apache Software License',
-        'Programming Language :: Python :: 3.6',
+        "Development Status :: 4 - Beta",
+        "Intended Audience :: Developers",
+        "Topic :: Software Development :: Libraries :: Python Modules",
+        "License :: OSI Approved :: Apache Software License",
+        "Programming Language :: Python :: 3.6",
     ],
-    py_modules=['dataclasses']
+    py_modules=["dataclasses"],
+    python_requires=">=3.6, <3.7",
 )