diff --git a/rest-java/scripts/requirements.txt b/rest-java/scripts/requirements.txt
index 593e416..fb405e6 100644
--- a/rest-java/scripts/requirements.txt
+++ b/rest-java/scripts/requirements.txt
@@ -9,7 +9,7 @@ idna==2.2
 ipaddress==1.0.17
 keyring==10.1
 keyrings.alt==1.3
-lxml==3.7.1
+lxml==4.9.1
 pyasn1==0.1.9
 pycrypto==2.6.1
 pygobject==3.22.0