diff --git a/python-dependency/example5/setup.py b/python-dependency/example5/setup.py
index 2edd9df..509c457 100644
--- a/python-dependency/example5/setup.py
+++ b/python-dependency/example5/setup.py
@@ -3,5 +3,5 @@
 setuptools.setup(
     name='write2xml',
     version='1.0.0',
-    install_requires=['lxml==4.7.1']
+    install_requires=['lxml==4.9.1']
 )
\ No newline at end of file