From 944c18dd8a737a85d88090ed7045c35a6e473585 Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Thu, 26 Jan 2017 08:11:59 +0200
Subject: [PATCH] Upper bound for #2237

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2550d988..be0bf008 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2783,6 +2783,9 @@ packages:
         - hspec-core < 2.4
         - hspec-discover < 2.4
 
+        # https://github.com/fpco/stackage/issues/2237
+        - constraints < 0.9
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of