From 8fb9aba29294a012b9a42d3ae9fafc1c6c3b4e8a Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@fpcomplete.com>
Date: Tue, 3 Nov 2015 15:23:40 +0000
Subject: [PATCH] Upper bound for #946

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 0f6d247c..4b8eef65 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1642,6 +1642,9 @@ packages:
         - lens < 4.13
         - semigroups < 0.17
 
+        # https://github.com/fpco/stackage/issues/946
+        - cereal < 0.5
+
 
 # end of packages