diff --git a/requirements.txt b/requirements.txt
index 1429bec..0fbff86 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ Keras-Preprocessing==1.1.2
 keras-self-attention==0.43.0
 konlpy==0.5.2
 kss==1.3.1
-lxml==4.5.1
+lxml==4.6.3
 Markdown==3.2.2
 numpy==1.18.4
 oauthlib==3.1.0