From 71330b55ba9e2b2e4100838083310cec8174715b Mon Sep 17 00:00:00 2001
From: Alexey Zabelin <hello@alexeyzabelin.com>
Date: Sun, 14 Oct 2018 11:37:33 -0400
Subject: [PATCH] Add upper bound for yaml, #4053

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6206c1f6..573993f7 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4470,6 +4470,9 @@ packages:
         - stache
         - neat-interpolation < 0.3.2.3
 
+        # https://github.com/commercialhaskell/stackage/issues/4053
+        - yaml < 0.11
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of