diff --git a/pyproject.toml b/pyproject.toml
index 077dc4e..837c95f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ typing-extensions = "^4.4.0"
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.0"
 black = "^22.1"
-isort = "^5.10.1"
+isort = "^9.0.0"
 tomli = { version = "^2.0.1", python = "<3.11" }
 pyright = "^1.1.273"
 pytest-rerunfailures = "^10.2"