diff --git a/requirements.txt b/requirements.txt
index 4eb19f8a..310a46d3 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/tests/test_bare.sh b/tests/test_bare.sh
index 7021a7e4..28f9b7bf 100755
--- a/tests/test_bare.sh
+++ b/tests/test_bare.sh
@@ -5,6 +5,10 @@
 
 set -o errexit
 
+# Install modern pip to use new resolver:
+# https://blog.python.org/2020/07/upgrade-pip-20-2-changes-20-3.html
+pip install 'pip>=20.2'
+
 # install test requirements
 pip install -r requirements.txt
 
@@ -20,7 +24,7 @@ cd my_awesome_project
 sudo utility/install_os_dependencies.sh install
 
 # Install Python deps
-pip install -r requirements/local.txt
+pip install --use-feature=2020-resolver -r requirements/local.txt
 
 # run the project's tests
 pytest
diff --git a/{{cookiecutter.project_slug}}/.pre-commit-config.yaml b/{{cookiecutter.project_slug}}/.pre-commit-config.yaml
index 6aa9207a..734a0a71 100644
--- a/{{cookiecutter.project_slug}}/.pre-commit-config.yaml
+++ b/{{cookiecutter.project_slug}}/.pre-commit-config.yaml
@@ -15,6 +15,11 @@ repos:
     hooks:
       - id: black
 
+  - repo: https://github.com/timothycrosley/isort
+    rev: 4.3.21
+    hooks:
+      - id: isort
+
   - repo: https://gitlab.com/pycqa/flake8
     rev: 3.8.3
     hooks:
diff --git a/{{cookiecutter.project_slug}}/requirements/local.txt b/{{cookiecutter.project_slug}}/requirements/local.txt
index 028b36a9..78913593 100644
--- a/{{cookiecutter.project_slug}}/requirements/local.txt
+++ b/{{cookiecutter.project_slug}}/requirements/local.txt
@@ -13,7 +13,7 @@ watchgod==0.6  # https://github.com/samuelcolvin/watchgod
 
 # Testing
 # ------------------------------------------------------------------------------
-mypy==0.782  # https://github.com/python/mypy
+mypy==0.770  # https://github.com/python/mypy
 django-stubs==1.5.0  # https://github.com/typeddjango/django-stubs
 pytest==6.0.1  # https://github.com/pytest-dev/pytest
 pytest-sugar==0.9.4  # https://github.com/Frozenball/pytest-sugar
@@ -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