diff --git a/requirements/development.txt b/requirements/development.txt
index 9e6a3ea..47b307e 100644
--- a/requirements/development.txt
+++ b/requirements/development.txt
@@ -2,7 +2,7 @@
 # -------------------------------------------
 
 black
-flake8>=3.8,<4.1
+flake8>=3.8,<6.1
 flake8-builtins>=1.5,<1.6
 flake8-eradicate>=1.0,<1.5
 flake8-isort>=4.0,<4.3