diff --git a/Pipfile b/Pipfile
index 69b20988..dc86e263 100644
--- a/Pipfile
+++ b/Pipfile
@@ -4,7 +4,7 @@ url = "https://pypi.org/simple"
 verify_ssl = true
 
 [dev-packages]
-black = "==21.8b0"
+black = "==21.9b0"
 pytest = "==6.2.5"
 pytest-asyncio = "==0.15.1"
 pytest-cov = "==2.12.1"