diff --git a/docs/notebooks/solution.ipynb b/docs/notebooks/solution.ipynb
index f058705..02d46ce 100644
--- a/docs/notebooks/solution.ipynb
+++ b/docs/notebooks/solution.ipynb
@@ -23,7 +23,6 @@
    "outputs": [],
    "source": [
     "from graphviz import Digraph\n",
-    "import dot2tex\n",
     "\n",
     "\n",
     "dot = Digraph()\n",