diff --git a/lec2.ipynb b/lec2.ipynb
index ed7587e..c105bb9 100644
--- a/lec2.ipynb
+++ b/lec2.ipynb
@@ -1878,7 +1878,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": ".venv (3.13.3)",
+   "display_name": ".venv (3.12.10)",
    "language": "python",
    "name": "python3"
   },