From 549209ac437a31562c49265a87f138b5cd41bbe7 Mon Sep 17 00:00:00 2001
From: Adam Bergmark <adam@bergmark.nl>
Date: Tue, 19 Jun 2018 22:16:58 +0200
Subject: [PATCH] require upper bound for #3751

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index a1da90f9..d2a896d9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3554,6 +3554,9 @@ packages:
         - servant-client-core < 0.14
         - servant-server < 0.14
         - servant-lucid < 0.8.1
+
+        # https://github.com/commercialhaskell/stackage/issues/3751
+        - require < 0.3.1
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of