diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index ec93bd2..13fda32 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -22,7 +22,7 @@ dev = [
     "httpx>=0.27,<1.0",
     "pytest>=9.0.3,<10.0",
     "pytest-asyncio>=1.4,<2.0",
-    "ruff>=0.7,<1.0",
+    "ruff>=0.15.20,<1.0",
 ]
 
 [build-system]
diff --git a/backend/requirements-dev.txt b/backend/requirements-dev.txt
index 5a34e37..43b2f85 100644
--- a/backend/requirements-dev.txt
+++ b/backend/requirements-dev.txt
@@ -3,5 +3,5 @@
 httpx>=0.27,<0.28
 pytest>=9.0.3,<10.0
 pytest-asyncio>=1.4,<2.0
-ruff>=0.7,<1.0
+ruff>=0.15.20,<1.0
 pip-audit>=2.7,<3.0