diff --git a/homeworks/requirements.txt b/homeworks/requirements.txt
index 695cb52..06ff1e7 100644
--- a/homeworks/requirements.txt
+++ b/homeworks/requirements.txt
@@ -25,7 +25,7 @@ matplotlib==3.0.2
 mistune==0.8.4
 nbconvert==5.4.0
 nbformat==4.4.0
-notebook==5.7.4
+notebook==6.4.12
 numpy==1.16.0
 pandocfilters==1.4.2
 parso==0.3.1