Use later black release

fabaff · web-flow · commit e0d56fe65234 · 2021-10-12T16:56:33.000+02:00
diff --git a/pyproject.toml b/pyproject.toml
@@ -33,7 +33,7 @@ yarl = "^1.7"
 
 [tool.poetry.dev-dependencies]
 pytest-cov = "^2.8.1"
-black = "^20.8b1"
+black = "^21.9b0"
 pytest = "^6"
 pytest-httpx = "^0.11"
 pytest-asyncio = "^0.14"
