diff --git a/Cindy/ANR/requirements.txt b/Cindy/ANR/requirements.txt
index 5cfbc30..359c8ae 100644
--- a/Cindy/ANR/requirements.txt
+++ b/Cindy/ANR/requirements.txt
@@ -24,7 +24,7 @@ matplotlib==3.2.1
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.6
-notebook==6.0.3
+notebook==6.4.12
 numpy==1.18.3
 pandas==1.0.3
 pandocfilters==1.4.2