diff --git a/requirements.txt b/requirements.txt
index 81c18ae..06559e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ msgpack-python==0.4.8
 nbconvert==5.1.1
 nbformat==4.3.0
 nltk==3.2.2
-notebook==4.4.1
+notebook==6.1.5
 numpy==1.12.0
 olefile==0.43
 opencv-python==3.2.0.6