diff --git a/dev-requirements.txt b/dev-requirements.txt
index 9386086..c548d74 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -2,7 +2,7 @@
 
 black==19.10b0
 flake8==3.7.9
-isort==4.3.21
+isort==5.6.4
 mypy==0.770
 flake8-bugbear==20.1.4
 flake8-builtins==1.5.2