From c2b50ee456b2c575bcaf0dcfdc19ac12de26e5d0 Mon Sep 17 00:00:00 2001
From: Chris Done <chrisdone@gmail.com>
Date: Tue, 21 Jun 2016 09:52:01 +0200
Subject: [PATCH] Remove upper bound on singletons<2.2 (fixes #1627)

---
 build-constraints.yaml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index ad656e0c..7e135510 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2247,7 +2247,7 @@ packages:
 
     "Tebello Thejane <zyxoas+stackage@gmail.com> @tebello-thejane":
         - bitx-bitcoin
-        
+
     "Andrew Lelechenko <andrew.lelechenko@gmail.com> @Bodigrim":
         - exp-pairs
 
@@ -2287,8 +2287,6 @@ packages:
         # https://github.com/fpco/stackage/issues/1597
         - tagsoup < 0.14
 
-        # https://github.com/fpco/stackage/issues/1627
-        - singletons < 2.2
 # end of packages