diff --git a/setup.py b/setup.py
index cef9dc1..51ed637 100644
--- a/setup.py
+++ b/setup.py
@@ -26,8 +26,8 @@ tests_require = [
 
 
 dev_requires = [
-    "black",
-    "ruff",
+    "black==23.7.0",
+    "ruff==0.0.283",
     "pre-commit",
 ] + tests_require