diff --git a/pyproject.toml b/pyproject.toml
index 0673e139..676b50ef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,7 +50,7 @@ docs = [
     "sphinx-copybutton==0.5.2",
     "sphinx>=5,<9",
     "sphinx_design==0.6.1",
-    "myst-nb==1.3.0",
+    "myst-nb==1.4.0",
     "sphinx-book-theme==1.1.4",
     "sphinx-argparse==0.5.2",
     "sphinx-toolbox==4.1.2",