From 4508671a92b3bd1db03a893c73fd6c4cf6f5524d Mon Sep 17 00:00:00 2001
From: Jens Petersen <juhpetersen@gmail.com>
Date: Wed, 27 Jan 2016 14:06:35 +0900
Subject: [PATCH] semigroups-0.18.1 upperbound (#1190)

---
 build-constraints.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 467e70ff..d9001b70 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -341,7 +341,7 @@ packages:
         - reflection
         - semigroupoid-extras
         - semigroupoids
-        - semigroups
+        - semigroups < 0.18.1
         - speculation
         - streams
         - tagged