diff --git a/dev-requirements.txt b/dev-requirements.txt
index 24da70defa6..b8ae14c89c3 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,5 +1,5 @@
 pylint==2.4.4
-flake8~=3.7
+flake8==3.7.9
 isort~=4.3
 black>=19.3b0,==19.*
 mypy==0.740