diff --git a/requirements.txt b/requirements.txt
index 1c74a9e..93c9e8d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ kiwisolver==1.1.0
 lazy-object-proxy==1.4.1
 librosa==0.7.2
 llvmlite==0.31.0
-lxml==4.5.0
+lxml==4.9.1
 marisa-trie==0.7.5
 Markdown==3.1.1
 MarkupSafe==1.1.1