From 41c5331b7cbf3fc76931d340b9dcfef34b094ee8 Mon Sep 17 00:00:00 2001
From: Mihai Maruseac <mihai.maruseac@gmail.com>
Date: Mon, 7 Aug 2017 07:40:09 -0700
Subject: [PATCH] Upper bound req per issue #2730

---
 build-constraints.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7252d6f5..d3806a50 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3299,6 +3299,9 @@ packages:
         - brick < 0.21
         - word-wrap < 0.2
 
+        # https://github.com/fpco/stackage/issues/2730
+        - req < 0.4
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of