From e1514b8dcc143a932ca13bc68e8d79cb59a9a3b5 Mon Sep 17 00:00:00 2001
From: Mihai Maruseac <mihai.maruseac@gmail.com>
Date: Sat, 6 Jan 2018 14:24:50 -0800
Subject: [PATCH] Upper bounds safe (#3172)

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index d361dfdb..242de745 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3187,6 +3187,9 @@ packages:
         - hspec-core < 2.4.5
         - hspec-discover < 2.4.5
 
+        # https://github.com/fpco/stackage/issues/3172
+        - safe < 0.3.16
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of