diff --git a/pytrading/py_trading/requirements.txt b/pytrading/py_trading/requirements.txt
index 090fcbc..ac2462d 100644
--- a/pytrading/py_trading/requirements.txt
+++ b/pytrading/py_trading/requirements.txt
@@ -14,7 +14,7 @@ itsdangerous==1.1.0
 jdcal==1.4.1
 Jinja2==2.11.3
 kiwisolver==1.3.1
-lxml==4.6.2
+lxml==4.6.3
 MarkupSafe==1.1.1
 matplotlib==3.3.3
 mplfinance==0.12.7a5