diff --git a/setup.py b/setup.py
index 422eb3c3..32def707 100644
--- a/setup.py
+++ b/setup.py
@@ -72,7 +72,7 @@ setuptools.setup(
             "pytest-cov==2.12.1",
             "pycodestyle==2.7.0",
             "black==21.7b0",
-            "isort==5.9.2",
+            "isort==5.9.3",
             "mypy==0.910",
             # type stubs for mypy
             "types-backports==0.1.3",