diff --git a/requirements-lock.txt b/requirements-lock.txt
index f7b5acd9..74fecf04 100644
--- a/requirements-lock.txt
+++ b/requirements-lock.txt
@@ -90,3 +90,4 @@ wcwidth==0.9.2
 webencodings==0.6.1
 Werkzeug==3.1.9
 xlrd==2.0.2
+# throwaway change to exercise the benchmark-diff workflow (#1131); do not merge