diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 98321b2095..4eed846b28 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -202,7 +202,7 @@ This is useful if you do not test against all required dependency versions.
 **Docker:** Another option is utilize the [pytorch lightning cuda base docker image](https://hub.docker.com/repository/docker/pytorchlightning/pytorch_lightning/tags?page=1&name=cuda). You can then run:
 
 ```bash
-python -m pytest pytorch_lightning tests pl_examples -v --flake8
+python -m pytest pytorch_lightning tests pl_examples -v
 ```
 
 ### Pull Request
diff --git a/Makefile b/Makefile
index a659d4a4b0..964b9ab103 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ test: clean
 	# install APEX, see https://github.com/NVIDIA/apex#linux
 
 	# use this to run tests
-	python -m coverage run --source pytorch_lightning -m pytest pytorch_lightning tests pl_examples -v --flake8
+	python -m coverage run --source pytorch_lightning -m pytest pytorch_lightning tests pl_examples -v
 	python -m coverage report
 
 docs: clean
diff --git a/requirements/test.txt b/requirements/test.txt
index 1ca085ef2a..2d47143ca5 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -2,7 +2,6 @@ coverage>=5.0
 codecov>=2.1
 pytest>=5.0
 # pytest-cov
-# pytest-flake8
 flake8>=3.6
 check-manifest
 twine==3.2