diff --git a/requirements.txt b/requirements.txt
index f0fd8f6..9ea9d1a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@ requests==2.27.1
 rdflib==5.0.0
 pandas==0.22.0
 pycld2==0.41
-lxml==4.6.5
+lxml==4.9.1
 beautifulsoup4==4.10.0
 SPARQLWrapper==1.8.5