Add fixed black version.

matthias_schaub · matthias_schaub · commit 4c7fed537940 · 2020-09-28T10:27:04.000+02:00
diff --git a/mapswipe_workers/.pre-commit-config.yaml b/mapswipe_workers/.pre-commit-config.yaml
@@ -1,7 +1,7 @@
 
 repos:
   - repo: https://github.com/psf/black
-    rev: stable
+    rev: 19.10b0
     hooks:
       - id: black
   - repo: https://gitlab.com/pycqa/flake8
