diff --git a/examples/pytorch/nlp/huggingface_models/common/examples/research_projects/lxmert/requirements.txt b/examples/pytorch/nlp/huggingface_models/common/examples/research_projects/lxmert/requirements.txt
index 9c4dd0fab03..0afb6b3fd56 100644
--- a/examples/pytorch/nlp/huggingface_models/common/examples/research_projects/lxmert/requirements.txt
+++ b/examples/pytorch/nlp/huggingface_models/common/examples/research_projects/lxmert/requirements.txt
@@ -70,7 +70,7 @@ pyrsistent==0.16.0
 python-dateutil==2.8.1
 pytoml==0.1.21
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.2
 qtconsole==4.7.7
 QtPy==1.9.0