diff --git a/requirements.txt b/requirements.txt
index e7bb4d6..8073690 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ matplotlib==3.0.2
 msgpack-numpy==0.4.3.2
 nbconvert==5.3.1
 nltk==3.4.5
-notebook==6.1.5
+notebook==6.4.12
 numpy==1.16.0
 opencv-python==3.4.0.12
 pandas==0.24.1