From 9235cc11cfafbbc2bceb3592e4c8254144ab3c55 Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Wed, 19 Sep 2018 22:07:10 +0300
Subject: [PATCH] Upper bounds for #3985

---
 build-constraints.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index f1d93097..dc07f5ac 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3745,6 +3745,11 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/3984
         - unbound-generics < 0.4
 
+        # https://github.com/commercialhaskell/stackage/issues/3985
+        - singletons < 2.5
+        - eliminators < 0.5
+        - th-desugar < 1.9
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of