From 60fa96f6c31af2fd9bf1aa621c09d990655be3cd Mon Sep 17 00:00:00 2001
From: Moul <moul@moul.re>
Date: Mon, 5 Apr 2021 20:42:04 +0200
Subject: [PATCH] [fix][ci] #153: Allow to install black pre-releases

black is only available as a pre-release
Check is performed/The error appears from Poetry v1.1.5
---
 pyproject.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyproject.toml b/pyproject.toml
index 0c849b30..5d8f8370 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ graphql-core = "^3.1.2"
 websocket-client = "^0.57"
 
 [tool.poetry.dev-dependencies]
-black = "^20.8b1"
+black = {version = "^20.8b1", allow-prereleases = true}
 mypy = "^0.790"
 pylint = "^2.7.2"
 sphinx = "^3.2.1"
-- 
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