diff --git a/requirements-dev.txt b/requirements-dev.txt
index d338e6f..60c304b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
 # Direct test inputs are pinned so a new upstream release cannot change CI.
 coverage==7.15.2
 pytest==9.1.1
-ruff==0.15.20
+ruff==0.16.1