diff --git a/requirements_test.txt b/requirements_test.txt
index 4239008..3a92d18 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,5 +1,5 @@
 -e .
 requests-oauthlib==1.3.1
-lxml==5.0.1
+lxml==6.1.0
 # Obviously Trac is also needed, but because we want to test several versions
 # then we install it manually