diff --git a/g-cloud/requirements.txt b/g-cloud/requirements.txt
index 54cb0b2..a7e2958 100644
--- a/g-cloud/requirements.txt
+++ b/g-cloud/requirements.txt
@@ -148,7 +148,7 @@ nbformat==5.0.4
 networkx==2.4
 nltk==3.4.5
 nose==1.3.7
-notebook==6.0.3
+notebook==6.4.12
 numba==0.48.0
 numexpr==2.7.1
 numpy==1.18.1