diff --git a/pyproject.toml b/pyproject.toml
index cfaf26f..ddbc4c9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ requests = "~2"
 tqdm = "~4"
 ipywidgets = ">=8.1.1,<9"
 ipython = "*"
-widgetsnbextension = ">=4.0.10,<5"
+widgetsnbextension = "4.0.10"
 ibm-cos-sdk = ">=2.13.3"
 typing-extensions = {version = "*", python = "^3.12.2", optional = true}
 # Sphinx documentation dependencies