From 85e1c1d5759fb0db34ca88530e6ec9876ddcd2bc Mon Sep 17 00:00:00 2001
From: Dan Burton <danburton.email@gmail.com>
Date: Sun, 28 Jan 2018 12:13:42 -0800
Subject: [PATCH] Add constraint "hpack < 0.23" per #3237

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 911ee5f1..7ab8877a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3268,6 +3268,9 @@ packages:
         # https://github.com/fpco/stackage/issues/3234
         - free < 5
 
+        # https://github.com/fpco/stackage/issues/3237
+        - hpack < 0.23
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of