diff --git a/index.ipynb b/index.ipynb
index 1038b370c2848279026077bb027272fdd94ac6f5..a09134c8285ee68e7230afabd76dfdc7ee3c8b89 100644
--- a/index.ipynb
+++ b/index.ipynb
@@ -24,20 +24,6 @@
     "- [J0302 - EXTRA - Newton iterative scheme](extras/newton_method.ipynb)\n",
     "- [J0303 - EXTRA - Nonlinear finite-element solver for 1d pullout](extras/pullout1d.ipynb)"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
@@ -56,7 +42,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.2"
+   "version": "3.7.6"
   },
   "toc": {
    "base_numbering": 1,