diff --git a/requirements.txt b/requirements.txt
index 1fbc8d16..fd88434d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ binaryornot==0.4.4
 black==19.10b0
 isort==4.3.21
 flake8==3.8.3
-flake8-isort==3.0.1
+flake8-isort==4.0.0
 
 # Testing
 # ------------------------------------------------------------------------------
diff --git a/{{cookiecutter.project_slug}}/requirements/local.txt b/{{cookiecutter.project_slug}}/requirements/local.txt
index 028b36a9..6b6f00e9 100644
--- a/{{cookiecutter.project_slug}}/requirements/local.txt
+++ b/{{cookiecutter.project_slug}}/requirements/local.txt
@@ -26,7 +26,7 @@ sphinx-autobuild==0.7.1 # https://github.com/GaretJax/sphinx-autobuild
 # Code quality
 # ------------------------------------------------------------------------------
 flake8==3.8.3  # https://github.com/PyCQA/flake8
-flake8-isort==3.0.1  # https://github.com/gforcada/flake8-isort
+flake8-isort==4.0.0  # https://github.com/gforcada/flake8-isort
 coverage==5.2.1  # https://github.com/nedbat/coveragepy
 black==19.10b0  # https://github.com/ambv/black
 pylint-django==2.3.0  # https://github.com/PyCQA/pylint-django