diff --git a/04-One-Dimensional-Kalman-Filters.ipynb b/04-One-Dimensional-Kalman-Filters.ipynb
index 8526727..885873f 100644
--- a/04-One-Dimensional-Kalman-Filters.ipynb
+++ b/04-One-Dimensional-Kalman-Filters.ipynb
@@ -2260,7 +2260,7 @@
    "source": [
     "`update` also takes several arguments, but for now you will be interested in these four:\n",
     " \n",
-    "```Python\n",
+    "```python\n",
     "update(x, P, z, R)\n",
     "```\n",
     " \n",
@@ -2315,8 +2315,9 @@
   }
  ],
  "metadata": {
+  "anaconda-cloud": {},
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python [default]",
    "language": "python",
    "name": "python3"
   },