diff --git a/requirements.txt b/requirements.txt
index edc1797..d354a30 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ mypy-extensions==0.4.2
 nbconvert==5.6.0
 nbformat==4.4.0
 nltk==3.5
-notebook==5.2.2
+notebook==6.1.5
 numpy==1.17.2
 opt-einsum==3.1.0
 overrides==2.0