diff --git a/odoo10/docker_debian/requirements.txt b/odoo10/docker_debian/requirements.txt
index 496b54c7..26d019f6 100644
--- a/odoo10/docker_debian/requirements.txt
+++ b/odoo10/docker_debian/requirements.txt
@@ -7,7 +7,7 @@ gevent==1.1.2
 greenlet==0.4.10
 jcconv==0.2.3
 Jinja2==2.8
-lxml==3.5.0
+lxml==4.6.3
 Mako==1.0.4
 MarkupSafe==0.23
 mock==2.0.0
diff --git a/odoo10/docker_src/requirements.txt b/odoo10/docker_src/requirements.txt
index 496b54c7..26d019f6 100644
--- a/odoo10/docker_src/requirements.txt
+++ b/odoo10/docker_src/requirements.txt
@@ -7,7 +7,7 @@ gevent==1.1.2
 greenlet==0.4.10
 jcconv==0.2.3
 Jinja2==2.8
-lxml==3.5.0
+lxml==4.6.3
 Mako==1.0.4
 MarkupSafe==0.23
 mock==2.0.0
diff --git a/odoo10/requirements.txt b/odoo10/requirements.txt
index 496b54c7..26d019f6 100644
--- a/odoo10/requirements.txt
+++ b/odoo10/requirements.txt
@@ -7,7 +7,7 @@ gevent==1.1.2
 greenlet==0.4.10
 jcconv==0.2.3
 Jinja2==2.8
-lxml==3.5.0
+lxml==4.6.3
 Mako==1.0.4
 MarkupSafe==0.23
 mock==2.0.0