diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3a0afeb..93a0811 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,3 @@
 # Testing tools
-lxml==5.1.0
+lxml==5.1.1
 pytest==8.1.1