diff --git a/requirements.txt b/requirements.txt
index 0b4e76f..d6a59e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ cycler==0.10.0
 fix-yahoo-finance==0.0.22
 idna==2.7
 kiwisolver==1.0.1
-lxml==4.2.4
+lxml==4.6.5
 matplotlib==2.2.3
 multitasking==0.0.7
 numpy==1.15.1