diff --git a/requirements.txt b/requirements.txt
index 41a360d..b022124 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ kafka-python==2.0.1
 keyring==21.1.0
 keyrings.alt==3.4.0
 lazy-object-proxy==1.4.3
-lxml==4.5.0
+lxml==4.9.1
 MarkupSafe==1.1.1
 mccabe==0.6.1
 mistune==0.8.4