From 0470efe59e7c55d6e0e07be5a3e8a49f80efd681 Mon Sep 17 00:00:00 2001
From: Mihai Maruseac <mihai.maruseac@gmail.com>
Date: Sun, 7 Jan 2018 15:19:40 -0800
Subject: [PATCH] More bounds for #3173

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index aeda1d34..a25cea72 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3187,6 +3187,7 @@ packages:
 
         # https://github.com/fpco/stackage/issues/3173
         - th-desugar < 1.8
+        - singletons < 2.4
 
 # end of packages