diff --git a/requirements.txt b/requirements.txt
index 8c8c6fd140a364f25ecdcb7986397e3312e0aa98..61d9a2d84878e3ef78a6c2d923b3c781e3a46e4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ jupyter_client
 ipython
 ipykernel
 pathlib
-nbconvert
+nbconvert<6.0
 plotly
 matplotlib
 scipy