diff --git a/jupyter_spaces/magics.py b/jupyter_spaces/magics.py
index 85e7726..b358e9e 100644
--- a/jupyter_spaces/magics.py
+++ b/jupyter_spaces/magics.py
@@ -1,8 +1,7 @@
-from IPython.core.magic import cell_magic, line_magic, Magics, magics_class
+from IPython.core.magic import Magics, cell_magic, line_magic, magics_class
 
 from jupyter_spaces.space import SpaceRegister
 
-
 space_register = SpaceRegister()
 
 
diff --git a/requirements/dev_requirements.txt b/requirements/dev_requirements.txt
index 7c9d150..33bf49d 100644
--- a/requirements/dev_requirements.txt
+++ b/requirements/dev_requirements.txt
@@ -1 +1,3 @@
 black==19.10b0
+isort==5.6.4
+
diff --git a/tests/conftest.py b/tests/conftest.py
index 25417fc..f70e766 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,5 @@
-from IPython.testing.globalipapp import start_ipython
 import pytest
+from IPython.testing.globalipapp import start_ipython
 
 
 @pytest.fixture(scope="session")