diff --git a/src/requirements.txt b/src/requirements.txt
index 4035736..0e1fc00 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -12,7 +12,7 @@ setuptools==38.4.0
 eventlet==0.21.0
 redis==2.10.6
 celery==4.1.0
-lxml==4.1.1
+lxml==4.6.5
 elasticsearch==6.1.1
 joblib==0.11
 kombu==4.1.0