diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f9da16d5..136f8e7a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,3 +15,11 @@ repos:
     rev: 88caf5ac484f5c09aedc02167c59c66ff0af0068  # 3.7.7
     hooks:
     -   id: flake8
+-   repo: git://github.com/asottile/seed-isort-config
+    rev: v1.7.0
+    hooks:
+    -   id: seed-isort-config
+-   repo: git://github.com/pre-commit/mirrors-isort
+    rev: v4.3.4
+    hooks:
+    -   id: isort
diff --git a/docs/conf.py b/docs/conf.py
index d729246a..3fa6391d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -136,7 +136,7 @@
 # html_theme = 'alabaster'
 # if on_rtd:
 #     html_theme = 'sphinx_rtd_theme'
-import sphinx_graphene_theme
+import sphinx_graphene_theme  # isort:skip
 
 html_theme = "sphinx_graphene_theme"
 
diff --git a/docs/tutorial.rst b/docs/tutorial.rst
index 26f0cb2b..bc5ee62d 100644
--- a/docs/tutorial.rst
+++ b/docs/tutorial.rst
@@ -93,7 +93,7 @@ Create ``flask_sqlalchemy/schema.py`` and type the following:
     import graphene
     from graphene import relay
     from graphene_sqlalchemy import SQLAlchemyObjectType, SQLAlchemyConnectionField
-    from models import db_session, Department as DepartmentModel, Employee as EmployeeModel
+    from .models import db_session, Department as DepartmentModel, Employee as EmployeeModel
 
 
     class Department(SQLAlchemyObjectType):
@@ -146,8 +146,8 @@ installed makes this task quite easy.
     from flask import Flask
     from flask_graphql import GraphQLView
 
-    from models import db_session
-    from schema import schema, Department
+    from .models import db_session
+    from .schema import schema, Department
 
     app = Flask(__name__)
     app.debug = True
@@ -175,7 +175,7 @@ Creating some data
 
     $ python
 
-    >>> from models import engine, db_session, Base, Department, Employee
+    >>> from .models import engine, db_session, Base, Department, Employee
     >>> Base.metadata.create_all(bind=engine)
 
     >>> # Fill the tables with some data
diff --git a/examples/flask_sqlalchemy/app.py b/examples/flask_sqlalchemy/app.py
index 64390aa6..a4d3f29e 100755
--- a/examples/flask_sqlalchemy/app.py
+++ b/examples/flask_sqlalchemy/app.py
@@ -2,9 +2,10 @@
 
 from flask import Flask
 
-from database import db_session, init_db
 from flask_graphql import GraphQLView
-from schema import schema
+
+from .database import db_session, init_db
+from .schema import schema
 
 app = Flask(__name__)
 app.debug = True
diff --git a/examples/flask_sqlalchemy/database.py b/examples/flask_sqlalchemy/database.py
index ca4d4122..01e76ca6 100644
--- a/examples/flask_sqlalchemy/database.py
+++ b/examples/flask_sqlalchemy/database.py
@@ -14,7 +14,7 @@ def init_db():
     # import all modules here that might define models so that
     # they will be registered properly on the metadata.  Otherwise
     # you will have to import them first before calling init_db()
-    from models import Department, Employee, Role
+    from .models import Department, Employee, Role
     Base.metadata.drop_all(bind=engine)
     Base.metadata.create_all(bind=engine)
 
diff --git a/examples/flask_sqlalchemy/models.py b/examples/flask_sqlalchemy/models.py
index 119aca02..e164c015 100644
--- a/examples/flask_sqlalchemy/models.py
+++ b/examples/flask_sqlalchemy/models.py
@@ -1,7 +1,7 @@
 from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, func
 from sqlalchemy.orm import backref, relationship
 
-from database import Base
+from .database import Base
 
 
 class Department(Base):
diff --git a/examples/flask_sqlalchemy/schema.py b/examples/flask_sqlalchemy/schema.py
index 434a9db2..cbee081c 100644
--- a/examples/flask_sqlalchemy/schema.py
+++ b/examples/flask_sqlalchemy/schema.py
@@ -1,9 +1,11 @@
 import graphene
 from graphene import relay
-from graphene_sqlalchemy import SQLAlchemyConnectionField, SQLAlchemyObjectType, utils
-from models import Department as DepartmentModel
-from models import Employee as EmployeeModel
-from models import Role as RoleModel
+from graphene_sqlalchemy import (SQLAlchemyConnectionField,
+                                 SQLAlchemyObjectType, utils)
+
+from .models import Department as DepartmentModel
+from .models import Employee as EmployeeModel
+from .models import Role as RoleModel
 
 
 class Department(SQLAlchemyObjectType):
diff --git a/examples/nameko_sqlalchemy/app.py b/examples/nameko_sqlalchemy/app.py
index 18302ce6..42a40a0c 100755
--- a/examples/nameko_sqlalchemy/app.py
+++ b/examples/nameko_sqlalchemy/app.py
@@ -1,8 +1,9 @@
-from database import db_session, init_db
-from schema import schema
-
 from graphql_server import (HttpQueryError, default_format_error,
-                            encode_execution_results, json_encode,load_json_body, run_http_query)
+                            encode_execution_results, json_encode,
+                            load_json_body, run_http_query)
+
+from .database import db_session, init_db
+from .schema import schema
 
 
 class App():
diff --git a/examples/nameko_sqlalchemy/database.py b/examples/nameko_sqlalchemy/database.py
index ca4d4122..01e76ca6 100644
--- a/examples/nameko_sqlalchemy/database.py
+++ b/examples/nameko_sqlalchemy/database.py
@@ -14,7 +14,7 @@ def init_db():
     # import all modules here that might define models so that
     # they will be registered properly on the metadata.  Otherwise
     # you will have to import them first before calling init_db()
-    from models import Department, Employee, Role
+    from .models import Department, Employee, Role
     Base.metadata.drop_all(bind=engine)
     Base.metadata.create_all(bind=engine)
 
diff --git a/examples/nameko_sqlalchemy/models.py b/examples/nameko_sqlalchemy/models.py
index 119aca02..e164c015 100644
--- a/examples/nameko_sqlalchemy/models.py
+++ b/examples/nameko_sqlalchemy/models.py
@@ -1,7 +1,7 @@
 from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, func
 from sqlalchemy.orm import backref, relationship
 
-from database import Base
+from .database import Base
 
 
 class Department(Base):
diff --git a/examples/nameko_sqlalchemy/schema.py b/examples/nameko_sqlalchemy/schema.py
index 5d9d3b72..fa747350 100644
--- a/examples/nameko_sqlalchemy/schema.py
+++ b/examples/nameko_sqlalchemy/schema.py
@@ -1,9 +1,10 @@
 import graphene
 from graphene import relay
 from graphene_sqlalchemy import SQLAlchemyConnectionField, SQLAlchemyObjectType
-from models import Department as DepartmentModel
-from models import Employee as EmployeeModel
-from models import Role as RoleModel
+
+from .models import Department as DepartmentModel
+from .models import Employee as EmployeeModel
+from .models import Role as RoleModel
 
 
 class Department(SQLAlchemyObjectType):
diff --git a/examples/nameko_sqlalchemy/service.py b/examples/nameko_sqlalchemy/service.py
index d83ab861..98157508 100644
--- a/examples/nameko_sqlalchemy/service.py
+++ b/examples/nameko_sqlalchemy/service.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 from nameko.web.handlers import http
-from app import App
+
+from .app import App
 
 
 class DepartmentService:
diff --git a/graphene_sqlalchemy/__init__.py b/graphene_sqlalchemy/__init__.py
index 810150f0..eee98090 100644
--- a/graphene_sqlalchemy/__init__.py
+++ b/graphene_sqlalchemy/__init__.py
@@ -2,7 +2,7 @@
 from .fields import SQLAlchemyConnectionField
 from .utils import get_query, get_session
 
-__version__ = "2.1.0"
+__version__ = "2.1.1"
 
 __all__ = [
     "__version__",
diff --git a/graphene_sqlalchemy/converter.py b/graphene_sqlalchemy/converter.py
index 72089613..053aa8b5 100644
--- a/graphene_sqlalchemy/converter.py
+++ b/graphene_sqlalchemy/converter.py
@@ -3,7 +3,8 @@
 from sqlalchemy.dialects import postgresql
 from sqlalchemy.orm import interfaces
 
-from graphene import ID, Boolean, Dynamic, Enum, Field, Float, Int, List, String
+from graphene import (ID, Boolean, Dynamic, Enum, Field, Float, Int, List,
+                      String)
 from graphene.types.json import JSONString
 
 from .fields import createConnectionField
diff --git a/graphene_sqlalchemy/fields.py b/graphene_sqlalchemy/fields.py
index bf3522b4..7e313625 100644
--- a/graphene_sqlalchemy/fields.py
+++ b/graphene_sqlalchemy/fields.py
@@ -1,5 +1,6 @@
 from functools import partial
-from promise import is_thenable, Promise
+
+from promise import Promise, is_thenable
 from sqlalchemy.orm.query import Query
 
 from graphene.relay import Connection, ConnectionField
diff --git a/graphene_sqlalchemy/tests/test_connectionfactory.py b/graphene_sqlalchemy/tests/test_connectionfactory.py
index 8ed3190e..796be5a4 100644
--- a/graphene_sqlalchemy/tests/test_connectionfactory.py
+++ b/graphene_sqlalchemy/tests/test_connectionfactory.py
@@ -1,9 +1,7 @@
-from graphene_sqlalchemy.fields import (
-    SQLAlchemyConnectionField,
-    registerConnectionFieldFactory,
-    unregisterConnectionFieldFactory,
-)
 import graphene
+from graphene_sqlalchemy.fields import (SQLAlchemyConnectionField,
+                                        registerConnectionFieldFactory,
+                                        unregisterConnectionFieldFactory)
 
 
 def test_register():
diff --git a/graphene_sqlalchemy/tests/test_converter.py b/graphene_sqlalchemy/tests/test_converter.py
index c6c49bba..d205427b 100644
--- a/graphene_sqlalchemy/tests/test_converter.py
+++ b/graphene_sqlalchemy/tests/test_converter.py
@@ -1,10 +1,10 @@
 import enum
 
 from py.test import raises
-from sqlalchemy import Column, Table, case, types, select, func
+from sqlalchemy import Column, Table, case, func, select, types
 from sqlalchemy.dialects import postgresql
 from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import composite, column_property
+from sqlalchemy.orm import column_property, composite
 from sqlalchemy.sql.elements import Label
 from sqlalchemy_utils import ChoiceType, JSONType, ScalarListType
 
@@ -13,11 +13,9 @@
 from graphene.types.datetime import DateTime
 from graphene.types.json import JSONString
 
-from ..converter import (
-    convert_sqlalchemy_column,
-    convert_sqlalchemy_composite,
-    convert_sqlalchemy_relationship,
-)
+from ..converter import (convert_sqlalchemy_column,
+                         convert_sqlalchemy_composite,
+                         convert_sqlalchemy_relationship)
 from ..fields import UnsortedSQLAlchemyConnectionField
 from ..registry import Registry
 from ..types import SQLAlchemyObjectType
diff --git a/graphene_sqlalchemy/tests/test_fields.py b/graphene_sqlalchemy/tests/test_fields.py
index 33ec442c..ff616b30 100644
--- a/graphene_sqlalchemy/tests/test_fields.py
+++ b/graphene_sqlalchemy/tests/test_fields.py
@@ -1,10 +1,12 @@
-from graphene.relay import Connection
 import pytest
 
+from graphene.relay import Connection
+
 from ..fields import SQLAlchemyConnectionField
 from ..types import SQLAlchemyObjectType
 from ..utils import sort_argument_for_model
-from .models import Pet as PetModel, Editor
+from .models import Editor
+from .models import Pet as PetModel
 
 
 class Pet(SQLAlchemyObjectType):
diff --git a/graphene_sqlalchemy/tests/test_query.py b/graphene_sqlalchemy/tests/test_query.py
index 8bb4891c..146c54e6 100644
--- a/graphene_sqlalchemy/tests/test_query.py
+++ b/graphene_sqlalchemy/tests/test_query.py
@@ -5,11 +5,11 @@
 import graphene
 from graphene.relay import Connection, Node
 
-from ..registry import reset_global_registry
 from ..fields import SQLAlchemyConnectionField
+from ..registry import reset_global_registry
 from ..types import SQLAlchemyObjectType
 from ..utils import sort_argument_for_model, sort_enum_for_model
-from .models import Article, Base, Editor, Pet, Reporter, Hairkind
+from .models import Article, Base, Editor, Hairkind, Pet, Reporter
 
 db = create_engine("sqlite:///test_sqlalchemy.sqlite3")
 
diff --git a/graphene_sqlalchemy/tests/test_registry.py b/graphene_sqlalchemy/tests/test_registry.py
index 8894314d..1945af6d 100644
--- a/graphene_sqlalchemy/tests/test_registry.py
+++ b/graphene_sqlalchemy/tests/test_registry.py
@@ -1,8 +1,8 @@
 import pytest
 
-from .models import Pet
 from ..registry import Registry
 from ..types import SQLAlchemyObjectType
+from .models import Pet
 
 
 def test_register_incorrect_objecttype():
diff --git a/graphene_sqlalchemy/tests/test_types.py b/graphene_sqlalchemy/tests/test_types.py
index b6dce726..5eaf0137 100644
--- a/graphene_sqlalchemy/tests/test_types.py
+++ b/graphene_sqlalchemy/tests/test_types.py
@@ -1,13 +1,15 @@
 from collections import OrderedDict
-from graphene import Field, Int, Interface, ObjectType
-from graphene.relay import Node, is_node, Connection
+
 import six  # noqa F401
 from promise import Promise
 
+from graphene import Field, Int, Interface, ObjectType
+from graphene.relay import Connection, Node, is_node
+
+from ..fields import SQLAlchemyConnectionField
 from ..registry import Registry
 from ..types import SQLAlchemyObjectType, SQLAlchemyObjectTypeOptions
 from .models import Article, Reporter
-from ..fields import SQLAlchemyConnectionField
 
 registry = Registry()
 
diff --git a/graphene_sqlalchemy/tests/test_utils.py b/graphene_sqlalchemy/tests/test_utils.py
index 664b2595..a7b902fe 100644
--- a/graphene_sqlalchemy/tests/test_utils.py
+++ b/graphene_sqlalchemy/tests/test_utils.py
@@ -1,8 +1,9 @@
-from graphene import Enum, List, ObjectType, Schema, String
 import sqlalchemy as sa
 
-from ..utils import get_session, sort_enum_for_model, sort_argument_for_model
-from .models import Pet, Editor
+from graphene import Enum, List, ObjectType, Schema, String
+
+from ..utils import get_session, sort_argument_for_model, sort_enum_for_model
+from .models import Editor, Pet
 
 
 def test_get_session():
diff --git a/graphene_sqlalchemy/types.py b/graphene_sqlalchemy/types.py
index 300af684..dde746ec 100644
--- a/graphene_sqlalchemy/types.py
+++ b/graphene_sqlalchemy/types.py
@@ -1,8 +1,8 @@
 from collections import OrderedDict
 
 import sqlalchemy
-from sqlalchemy.inspection import inspect as sqlalchemyinspect
 from sqlalchemy.ext.hybrid import hybrid_property
+from sqlalchemy.inspection import inspect as sqlalchemyinspect
 from sqlalchemy.orm.exc import NoResultFound
 
 from graphene import Field  # , annotate, ResolveInfo
@@ -10,12 +10,10 @@
 from graphene.types.objecttype import ObjectType, ObjectTypeOptions
 from graphene.types.utils import yank_fields_from_attrs
 
-from .converter import (
-    convert_sqlalchemy_column,
-    convert_sqlalchemy_composite,
-    convert_sqlalchemy_relationship,
-    convert_sqlalchemy_hybrid_method,
-)
+from .converter import (convert_sqlalchemy_column,
+                        convert_sqlalchemy_composite,
+                        convert_sqlalchemy_hybrid_method,
+                        convert_sqlalchemy_relationship)
 from .registry import Registry, get_global_registry
 from .utils import get_query, is_mapped_class, is_mapped_instance
 
diff --git a/graphene_sqlalchemy/utils.py b/graphene_sqlalchemy/utils.py
index 7ac1a703..276a8075 100644
--- a/graphene_sqlalchemy/utils.py
+++ b/graphene_sqlalchemy/utils.py
@@ -1,9 +1,10 @@
-from graphene import Argument, Enum, List
 from sqlalchemy.exc import ArgumentError
 from sqlalchemy.inspection import inspect
 from sqlalchemy.orm import class_mapper, object_mapper
 from sqlalchemy.orm.exc import UnmappedClassError, UnmappedInstanceError
 
+from graphene import Argument, Enum, List
+
 
 def get_session(context):
     return context.get("session")
diff --git a/setup.cfg b/setup.cfg
index 88221f21..7fd23df6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,9 +5,12 @@ test=pytest
 exclude = setup.py,docs/*,examples/*,tests
 max-line-length = 120
 
-# TODO Add isort as a pre-commit hook
 [isort]
-known_first_party=graphene,graphene_sqlalchemy
+known_graphene=graphene,graphql_relay,flask_graphql,graphql_server,sphinx_graphene_theme
+known_first_party=graphene_sqlalchemy
+known_third_party=flask,nameko,promise,py,pytest,setuptools,singledispatch,six,sqlalchemy,sqlalchemy_utils
+sections=FUTURE,STDLIB,THIRDPARTY,GRAPHENE,FIRSTPARTY,LOCALFOLDER
+no_lines_before=FIRSTPARTY
 
 [bdist_wheel]
 universal=1
diff --git a/setup.py b/setup.py
index 0648381c..66704b28 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,8 @@
-from setuptools import find_packages, setup
-import sys
 import ast
 import re
+import sys
+
+from setuptools import find_packages, setup
 
 _version_re = re.compile(r"__version__\s+=\s+(.*)")