diff --git a/examples/tfb/requirements.txt b/examples/tfb/requirements.txt
index 065eecbfc..3641ceb98 100644
--- a/examples/tfb/requirements.txt
+++ b/examples/tfb/requirements.txt
@@ -7,7 +7,7 @@ gunicorn==19.9.0
 hyperlink==18.0.0
 idna==2.8
 incremental==17.5.0
-lxml==4.3.1
+lxml==6.1.0
 meinheld==0.6.1
 msgpack-python==0.5.6
 neurons==0.8.4