diff --git a/python/requirements_dev.txt b/python/requirements_dev.txt
index ca79a6b2..cee97d7b 100644
--- a/python/requirements_dev.txt
+++ b/python/requirements_dev.txt
@@ -1,4 +1,4 @@
-# Copyright (c) 2025, NVIDIA CORPORATION.
+# Copyright (c) 2026, NVIDIA CORPORATION.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,9 +13,9 @@
 # limitations under the License.
 
 -r requirements.txt
-black>=23.1.0
+black==25.12.0
 build>=0.10.0
-isort>=5.12.0
+isort==7.0.0
 mypy>=1.0.0
 numpydoc
 pydata-sphinx-theme