diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 2f0d2cc2..00d77d22 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -7,7 +7,7 @@ ci:
 
 repos:
 - repo: https://github.com/psf/black
-  rev: 21.8b0
+  rev: 21.9b0
   hooks:
   - id: black