diff --git a/transformers/examples/research_projects/lxmert/requirements.txt b/transformers/examples/research_projects/lxmert/requirements.txt
index f65783d59..3a7d95a47 100644
--- a/transformers/examples/research_projects/lxmert/requirements.txt
+++ b/transformers/examples/research_projects/lxmert/requirements.txt
@@ -43,7 +43,7 @@ matplotlib==3.3.1
 mistune==0.8.4
 msgpack==0.6.2
 nbclient==0.5.0
-nbconvert==6.0.1
+nbconvert==6.3.0
 nbformat==5.0.7
 nest-asyncio==1.4.0
 notebook==6.4.1