From 57baed612469730bf1cffcfe4ccb0e6aff323142 Mon Sep 17 00:00:00 2001
From: Burton DeWilde <burtdewilde@gmail.com>
Date: Wed, 8 Apr 2020 21:59:20 -0500
Subject: [PATCH] Add upper bound to sphinx version

the m2r extension isn't compatible with v3.0; see https://github.com/miyakogi/m2r/pull/55 for example
---
 requirements-dev.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/requirements-dev.txt b/requirements-dev.txt
index a7ebe606f..facae20d8 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 m2r>=0.2.0
 mypy>=0.600
-sphinx>=2.0.0
+sphinx>=2.0.0,<3.0.0
 pytest>=4.0.0
 pytest-cov>=2.6.0