diff --git a/requirements-dev.txt b/requirements-dev.txt
index 06731c4..9df8c63 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
 -r requirements.txt
 black==19.3b0
-nbdime==1.0.6
+nbdime==1.1.1
 pylint==2.3.1