diff --git a/klayout_dot_config/python/SiEPIC/tidy3d/requirements/dev.txt b/klayout_dot_config/python/SiEPIC/tidy3d/requirements/dev.txt
index b13efbfce..8b517ee94 100644
--- a/klayout_dot_config/python/SiEPIC/tidy3d/requirements/dev.txt
+++ b/klayout_dot_config/python/SiEPIC/tidy3d/requirements/dev.txt
@@ -7,7 +7,7 @@
 
 # required for development
 pre-commit
-black==22.3.0
+black==24.3.0
 pylint
 tox
 pytest