diff --git a/chapter2/requirements.txt b/chapter2/requirements.txt
index 0cd2dab..afa8f03 100644
--- a/chapter2/requirements.txt
+++ b/chapter2/requirements.txt
@@ -2,5 +2,5 @@ numpy==1.15.1
 pandas==0.23.4
 matplotlib==2.2.3
 prompt-toolkit==2.0.4
-ipython==7.0.0
+ipython==7.16.3
 jupyter==1.0.0