diff --git a/setup.py b/setup.py
index 1f5b20d22a2e83857971a481490fb4da5bf92961..86749bd335783ace3530716d47cbee6218a6ab25 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ version = open("version.txt").read().rstrip()
 
 requires = [
     "setuptools",
-    "black >=19",
+    "black>=19",
     "click>=7",
     "click-plugins",
     # "conda>=4",