diff --git a/dev-requirements.txt b/dev-requirements.txt
index 9386086..1cf25fe 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 
-black==19.10b0
+black==20.8b1
 flake8==3.7.9
 isort==4.3.21
 mypy==0.770