diff --git a/Pipfile b/Pipfile
index b80f2e893..336a9843b 100644
--- a/Pipfile
+++ b/Pipfile
@@ -65,3 +65,4 @@ pytest-xdist = "*"
 sphinx = "~=3.4.2"
 sphinx_rtd_theme = "*"
 tox = "*"
+black = "*"