diff --git a/requirements-dev.txt b/requirements-dev.txt
index 91626b1..85df410 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@ flake8-bugbear==21.9.2
 flake8-quotes==3.3.1
 flake8==4.0.1
 ipdb==0.13.9
-isort==5.9.3
+isort==5.11.4
 mypy==0.910
 numpy==1.21.3
 pyroma==3.2