diff --git a/Challenges/challenge_12_the_start_of_something_big/GregHilston/requirements.txt b/Challenges/challenge_12_the_start_of_something_big/GregHilston/requirements.txt
index cfba477..0df359e 100644
--- a/Challenges/challenge_12_the_start_of_something_big/GregHilston/requirements.txt
+++ b/Challenges/challenge_12_the_start_of_something_big/GregHilston/requirements.txt
@@ -6,7 +6,7 @@ decorator==4.3.0
 defusedxml==0.5.0
 entrypoints==0.2.3
 ipykernel==5.1.0
-ipython==7.1.1
+ipython==7.16.3
 ipython-genutils==0.2.0
 ipywidgets==7.4.2
 jedi==0.13.1