diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c186d738..a5644a9c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -4,7 +4,7 @@ repos:
     hooks:
       - id: isort
   - repo: https://github.com/psf/black
-    rev: 21.8b0
+    rev: 21.9b0
     hooks:
       - id: black
   - repo: https://github.com/pycqa/flake8