diff --git a/ch03/02_bonus_efficient-multihead-attention/mha-implementations.ipynb b/ch03/02_bonus_efficient-multihead-attention/mha-implementations.ipynb
index 89e1c40..c1abfc9 100644
--- a/ch03/02_bonus_efficient-multihead-attention/mha-implementations.ipynb
+++ b/ch03/02_bonus_efficient-multihead-attention/mha-implementations.ipynb
@@ -5,7 +5,7 @@
    "id": "6f678e62-7bcb-4405-86ae-dce94f494303",
    "metadata": {},
    "source": [
-    "# Appendix D: Efficient Multi-Head Attention Implementations"
+    "# Efficient Multi-Head Attention Implementations"
    ]
   },
   {
@@ -348,7 +348,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.12"
+   "version": "3.10.6"
   }
  },
  "nbformat": 4,