diff --git a/biochemist-python/chapters/binding_site_investigation.ipynb b/biochemist-python/chapters/binding_site_investigation.ipynb
index d2c1d46..98cb79f 100644
--- a/biochemist-python/chapters/binding_site_investigation.ipynb
+++ b/biochemist-python/chapters/binding_site_investigation.ipynb
@@ -5,7 +5,7 @@
    "id": "224c908b-d8df-480f-8f50-351bb56df43b",
    "metadata": {},
    "source": [
-    "# Investigation the binding Site\n",
+    "# Investigation the Binding Site\n",
     "\n",
     "\n",
     "Learning Objectives\n",
@@ -505,7 +505,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.9"
+   "version": "3.1.undefined"
   }
  },
  "nbformat": 4,