diff --git a/requirements.txt b/requirements.txt
index a570b7f..9869ce2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 nose==1.3.7
-lxml==3.6.4
+lxml==4.9.1
 clint==0.5.1
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 5af3ff8..c43eb06 100644
--- a/setup.py
+++ b/setup.py
@@ -55,7 +55,7 @@
     packages=['jsuite'],
 
     install_requires=[
-      'lxml==3.6.4',
+      'lxml==4.9.1',
       'clint==0.5.1'
     ],