diff --git a/examples/jupyter/hexagonal-lattice.ipynb b/examples/jupyter/hexagonal-lattice.ipynb
index e0a48e236..2a4f549ac 100644
--- a/examples/jupyter/hexagonal-lattice.ipynb
+++ b/examples/jupyter/hexagonal-lattice.ipynb
@@ -364,7 +364,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.0"
+   "version": "3.8.5"
   }
  },
  "nbformat": 4,