diff --git a/doc/code-cells.ipynb b/doc/code-cells.ipynb
index a25868a1..ecdf3877 100644
--- a/doc/code-cells.ipynb
+++ b/doc/code-cells.ipynb
@@ -150,9 +150,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Special Display Formats\n",
-    "\n",
-    "See [IPython example notebook](https://nbviewer.org/github/ipython/ipython/blob/main/examples/IPython%20Kernel/Rich%20Output.ipynb)."
+    "## Special Display Formats"
    ]
   },
   {