diff --git a/Activity01/requirements.txt b/Activity01/requirements.txt
index 148e72e..37e7c26 100644
--- a/Activity01/requirements.txt
+++ b/Activity01/requirements.txt
@@ -50,7 +50,7 @@ mistune==0.8.4
 more-itertools==8.0.2
 nbconvert==5.6.1
 nbformat==4.4.0
-notebook==6.0.2
+notebook==6.4.12
 numpy==1.17.3
 oauthlib==3.1.0
 opt-einsum==3.1.0