diff --git a/planning.ipynb b/planning.ipynb
index d84dab483..103114dd9 100644
--- a/planning.ipynb
+++ b/planning.ipynb
@@ -1000,7 +1000,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.4.3"
+   "version": "3.5.1"
   }
  },
  "nbformat": 4,