Updated requirements

setup.py

@@ -3,54 +3,45 @@
 import ast
 import re
 
-_version_re = re.compile(r'__version__\s+=\s+(.*)')
+_version_re = re.compile(r"__version__\s+=\s+(.*)")
 
-with open('graphene_sqlalchemy/__init__.py', 'rb') as f:
-    version = str(ast.literal_eval(_version_re.search(
-        f.read().decode('utf-8')).group(1)))
+with open("graphene_sqlalchemy/__init__.py", "rb") as f:
+    version = str(
+        ast.literal_eval(_version_re.search(f.read().decode("utf-8")).group(1))
+    )
 
 
 setup(
-    name='graphene-sqlalchemy',
+    name="graphene-sqlalchemy",
     version=version,
-
-    description='Graphene SQLAlchemy integration',
-    long_description=open('README.rst').read(),
-
-    url='https://github.com/graphql-python/graphene-sqlalchemy',
-
-    author='Syrus Akbary',
-    author_email='me@syrusakbary.com',
-
-    license='MIT',
-
+    description="Graphene SQLAlchemy integration",
+    long_description=open("README.rst").read(),
+    url="https://github.com/graphql-python/graphene-sqlalchemy",
+    author="Syrus Akbary",
+    author_email="me@syrusakbary.com",
+    license="MIT",
     classifiers=[
-        'Development Status :: 3 - Alpha',
-        'Intended Audience :: Developers',
-        'Topic :: Software Development :: Libraries',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.3',
-        'Programming Language :: Python :: 3.4',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: Implementation :: PyPy',
+        "Development Status :: 3 - Alpha",
+        "Intended Audience :: Developers",
+        "Topic :: Software Development :: Libraries",
+        "Programming Language :: Python :: 2",
+        "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.3",
+        "Programming Language :: Python :: 3.4",
+        "Programming Language :: Python :: 3.5",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: Implementation :: PyPy",
     ],
-
-    keywords='api graphql protocol rest relay graphene',
-
-    packages=find_packages(exclude=['tests']),
-
+    keywords="api graphql protocol rest relay graphene",
+    packages=find_packages(exclude=["tests"]),
     install_requires=[
-        'six>=1.10.0',
-        'graphene>=2.0',
-        'SQLAlchemy',
-        'singledispatch>=3.4.0.3',
-        'iso8601',
-    ],
-    tests_require=[
-        'pytest>=2.7.2',
-        'mock',
-        'sqlalchemy_utils',
+        "six>=1.10.0",
+        "graphene>=2.1.3",
+        "SQLAlchemy",
+        "singledispatch>=3.4.0.3",
+        "iso8601",
     ],
+    tests_require=["pytest>=2.7.2", "mock", "sqlalchemy_utils"],
 )