diff --git a/requirements-dev.txt b/requirements-dev.txt
index efefae5..d2c8ce0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 pytest>=9.1.1
 pytest-cov>=7.1.0
-ruff>=0.16.6
+ruff>=0.16.9
 pip-audit>=2.10.1
 hypothesis>=6.167.1
 # tests/test_qa_site.py drives the browser QA harness; the browser itself is not a pip