diff --git a/pyproject.toml b/pyproject.toml
index cac640aa..6ec4f69b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,7 @@ doc = [
 ]
 dev = [
   "ibex_bluesky_core[doc]",
-  "ruff==0.15.4",  # Update manually so we don't get new rules 'by accident'
+  "ruff==0.15.5",  # Update manually so we don't get new rules 'by accident'
   "pyright==1.1.408",  # Update manually
   "pytest",
   "pytest-asyncio",