From b23f95e2f3f10f57233c13c631fd127793c4fcaa Mon Sep 17 00:00:00 2001
From: Alexey Zabelin <hello@alexeyzabelin.com>
Date: Sun, 15 Sep 2019 10:43:59 -0700
Subject: [PATCH] Add upper bound for first-class-families, #4831

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9f7e83bb..9c2e5ea8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4834,6 +4834,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4829
         - safecopy < 0.10
 
+        # https://github.com/commercialhaskell/stackage/issues/4831
+        - first-class-families < 0.6
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of