diff --git a/python-recipes/semantic-router/01_routing_optimization.ipynb b/python-recipes/semantic-router/01_routing_optimization.ipynb
index 6b5ee3c..81a4714 100644
--- a/python-recipes/semantic-router/01_routing_optimization.ipynb
+++ b/python-recipes/semantic-router/01_routing_optimization.ipynb
@@ -30,7 +30,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": null,
    "id": "c620286e",
    "metadata": {},
    "outputs": [
@@ -46,7 +46,7 @@
     }
    ],
    "source": [
-    "%pip install -q sentence-transformers ranx \"redisvl>=0.6.0\" \"redis-retrieval-optimizer>=0.2.0\""
+    "%pip install -q sentence-transformers ranx \"redisvl>=0.6.0\" \"redis-retrieval-optimizer>=0.4.2\""
    ]
   },
   {