diff --git a/requirements.txt b/requirements.txt
index a410f313..54dbc229 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ binaryornot==0.4.4
 # ------------------------------------------------------------------------------
 black==20.8b1
 isort==5.7.0
-flake8==3.8.4
+flake8==3.9.0
 flake8-isort==4.0.0
 
 # Testing
diff --git a/{{cookiecutter.project_slug}}/requirements/local.txt b/{{cookiecutter.project_slug}}/requirements/local.txt
index ec239bb4..9b49a0b4 100644
--- a/{{cookiecutter.project_slug}}/requirements/local.txt
+++ b/{{cookiecutter.project_slug}}/requirements/local.txt
@@ -25,7 +25,7 @@ sphinx-autobuild==2020.9.1 # https://github.com/GaretJax/sphinx-autobuild
 
 # Code quality
 # ------------------------------------------------------------------------------
-flake8==3.8.4  # https://github.com/PyCQA/flake8
+flake8==3.9.0  # https://github.com/PyCQA/flake8
 flake8-isort==4.0.0  # https://github.com/gforcada/flake8-isort
 coverage==5.5  # https://github.com/nedbat/coveragepy
 black==20.8b1  # https://github.com/ambv/black