diff --git a/requirements.txt b/requirements.txt
index ae6a4b5..0297045 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ mccabe==0.6.1
 mistune==0.8.4
 more-itertools==5.0.0
 nbconvert==5.4.0
-nbdime==1.0.4
+nbdime==1.1.1
 nbformat==4.4.0
 notebook==5.7.4
 pandocfilters==1.4.2