diff --git a/Lecture5/requirements.txt b/Lecture5/requirements.txt
index 70bab6d..cea1bfa 100644
--- a/Lecture5/requirements.txt
+++ b/Lecture5/requirements.txt
@@ -9,7 +9,7 @@ entrypoints==0.3
 importlib-metadata==1.4.0
 inflect==4.0.0
 ipykernel==5.1.4
-ipython==7.11.1
+ipython==7.16.3
 ipython-genutils==0.2.0
 jaraco.itertools==5.0.0
 jedi==0.16.0