diff --git a/pyproject.toml b/pyproject.toml
index 5779bbe..06476d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ seaborn = "^0.13.0"
 nbsphinx = "^0.9.3"
 sphinx-copybutton = "^0.5.2"
 sphinx-autobuild = "^2024.0.0"
-ipython = "^8.15.0"
+ipython = "^9.0.0"
 sphinx-favicon = "^1.0.1"
 sphinx-argparse = "^0.6.0"
 mercury = "^2.3.10"