diff --git a/{{cookiecutter.repo_name}}/dev-requirements.txt b/{{cookiecutter.repo_name}}/dev-requirements.txt
index 49cd114..f4d64d8 100644
--- a/{{cookiecutter.repo_name}}/dev-requirements.txt
+++ b/{{cookiecutter.repo_name}}/dev-requirements.txt
@@ -3,7 +3,7 @@ black==26.5.1
 flake8==7.3.0
 flake8-datetimez==26.8.1
 flake8-debugger==4.1.2
-isort==8.0.1
+isort==9.0.1
 pdbpp==0.12.1
 pip-check-updates==0.29.0
 pre-commit==4.6.2