diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ecda3ed..01404a9 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -38,7 +38,7 @@ repos:
 
 # Python formatting
 - repo: https://github.com/psf/black
-  rev: 21.7b0
+  rev: 21.9b0
   hooks:
   - id: black