From 1a57a0981ab2c210ab62728de24bd76dd2f740fe Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Tue, 18 Sep 2018 14:10:34 +0300
Subject: [PATCH] Upper bound on unbound-generics for #3984

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7dbc7e97..28e599fa 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3741,6 +3741,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/3972
         - vector-algorithms < 0.8.0.0
 
+        # https://github.com/commercialhaskell/stackage/issues/3984
+        - unbound-generics < 0.4
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of