diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 25280d9..81e74b5 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -24,7 +24,7 @@ repos:
       - id: isort
         types: [python]
   - repo: https://github.com/psf/black
-    rev: stable
+    rev: 19.10b0
     hooks:
     - id: black
       types: [python]