From f9df313023019838251464765aa4101d4694017c Mon Sep 17 00:00:00 2001
From: Jens Petersen <juhpetersen@gmail.com>
Date: Tue, 30 May 2017 11:22:41 +0900
Subject: [PATCH] ghc-exactprint < 0.5.4.0 (#2547)

---
 build-constraints.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1001f4dd..07fdaf4a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3190,7 +3190,8 @@ packages:
         # https://github.com/fpco/stackage/issues/2538
         - criterion < 1.2
         - statistics < 0.14 # requires bigger criterion, criterion stopped on #2538
-
+        # https://github.com/fpco/stackage/issues/2547
+        - ghc-exactprint < 0.5.4.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of