diff --git a/packages/scout/requirements-dev.txt b/packages/scout/requirements-dev.txt
index 94c07b8..4d72a9e 100644
--- a/packages/scout/requirements-dev.txt
+++ b/packages/scout/requirements-dev.txt
@@ -4,5 +4,5 @@ pytest>=8.0
 pytest-asyncio>=0.23
 respx>=0.21
 pytest-mock>=3.12
-ruff>=0.4
+ruff>=0.15.17
 pyright>=1.1