diff --git a/pyproject.toml b/pyproject.toml
index 7549a69f37..8bfba59059 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -87,7 +87,7 @@ doc = [
     "nbformat==5.10.4",
     "numpydoc==1.8.0",
     "pandas==2.2.3",
-    "plotly==5.24.1",
+    "plotly==6.0.0",
     "pyiges[full]==0.3.1",
     "pypandoc==1.15",
     "pytest-sphinx==0.6.3",
@@ -98,7 +98,7 @@ doc = [
     "sphinx-design==0.6.1",
     "sphinx-gallery==0.18.0",
     "sphinx-jinja==2.0.2",
-    "sphinx-notfound-page==1.0.4",
+    "sphinx-notfound-page==1.1.0",
     "sphinx==8.1.3",
     "sphinxcontrib-websupport==2.0.0",
     "sphinxemoji==0.3.1",