diff --git a/11_midlevel_data.ipynb b/11_midlevel_data.ipynb
index c002737..6f13ee7 100644
--- a/11_midlevel_data.ipynb
+++ b/11_midlevel_data.ipynb
@@ -1275,7 +1275,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.2"
+   "version": "3.7.4"
   }
  },
  "nbformat": 4,