diff --git a/{{cookiecutter.repo_name}}/dev-requirements.txt b/{{cookiecutter.repo_name}}/dev-requirements.txt
index a1b4e2e..e4d8b4d 100644
--- a/{{cookiecutter.repo_name}}/dev-requirements.txt
+++ b/{{cookiecutter.repo_name}}/dev-requirements.txt
@@ -1,7 +1,7 @@
 -r requirements.txt
 black==26.5.1
 flake8==7.3.0
-flake8-datetimez==20.10.0
+flake8-datetimez==26.8.1
 flake8-debugger==4.1.2
 isort==8.0.1
 pdbpp==0.12.1