diff --git a/setup.py b/setup.py
index 86749bd335783ace3530716d47cbee6218a6ab25..a314d48b7036cecbbcea7d52d706e8bc5c3f8b3d 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ version = open("version.txt").read().rstrip()
 
 requires = [
     "setuptools",
-    "black>=19",
+    "black>=19b0",
     "click>=7",
     "click-plugins",
     # "conda>=4",