diff --git a/HANDSON-ML/requirements.txt b/HANDSON-ML/requirements.txt
index b06dc2d..30387ff 100644
--- a/HANDSON-ML/requirements.txt
+++ b/HANDSON-ML/requirements.txt
@@ -81,7 +81,7 @@ joblib==0.14.1
 requests==2.23.0
 
 # Nice utility to diff Jupyter Notebooks.
-nbdime==2.0.0
+nbdime==2.1.1
 
 # May be useful with Pandas for complex "where" clauses (e.g., Pandas
 # tutorial).