diff --git a/requirements.txt b/requirements.txt
index 2ba4e51..fcc3efb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-lxml==3.6.4
+lxml==4.6.2
 beautifulsoup4==4.5.1
 numpy==1.11.1
 pandas==0.19.2