diff --git a/BRICR-to-v2.0/requirements.txt b/BRICR-to-v2.0/requirements.txt
index 3b39973..1846f79 100644
--- a/BRICR-to-v2.0/requirements.txt
+++ b/BRICR-to-v2.0/requirements.txt
@@ -1,2 +1,2 @@
-lxml==4.6.2
+lxml==4.9.1
 xmlschema==1.1.2
\ No newline at end of file