diff --git a/pyproject.toml b/pyproject.toml
index fcfd8d773aa8..259e70d2e85d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 # setuptools>=77. Keep this floor in lockstep with the `license` form in
 # [project]; an older build backend rejects the string form.
 [build-system]
-requires = ["setuptools>=77.0,<83"]
+requires = ["setuptools>=77.0,<84"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -118,7 +118,7 @@ edge-tts = ["edge-tts==7.2.7"]
 modal = ["modal==1.3.4"]
 daytona = ["daytona==0.155.0"]
 hindsight = ["hindsight-client==0.6.1"]
-dev = ["debugpy==1.8.20", "pytest==9.0.2", "pytest-asyncio==1.3.0", "pytest-timeout==2.4.0", "mcp==1.26.0", "starlette==1.0.1", "ty==0.0.21", "ruff==0.15.10", "setuptools==82.0.1"]  # starlette: CVE-2026-48710
+dev = ["debugpy==1.8.20", "pytest==9.0.2", "pytest-asyncio==1.3.0", "pytest-timeout==2.4.0", "mcp==1.26.0", "starlette==1.0.1", "ty==0.0.21", "ruff==0.15.10", "setuptools==83.0.0"]  # starlette: CVE-2026-48710
 messaging = ["python-telegram-bot[webhooks]==22.6", "discord.py[voice]==2.7.1", "aiohttp==3.13.3", "brotlicffi==1.2.0.1", "slack-bolt==1.27.0", "slack-sdk==3.40.1", "qrcode==7.4.2"]
 cron = []  # croniter is now a core dependency; this extra kept for back-compat
 slack = ["slack-bolt==1.27.0", "slack-sdk==3.40.1", "aiohttp==3.13.3"]