diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d9711fa..cce44db 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,4 +1,10 @@
 repos:
+  - repo: https://github.com/psf/black
+    rev: 24.10.0
+    hooks:
+      - id: black
+        language_version: python3
+
   - repo: local
     hooks:
       - id: ljpw-check