From 0fa84d96b3512f5bb439d32704377599b4a9bf95 Mon Sep 17 00:00:00 2001
From: Mihai Maruseac <mihai.maruseac@gmail.com>
Date: Mon, 6 May 2019 17:33:01 -0700
Subject: [PATCH] Block doctest-0.16.1 (#4523)

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2833a8b4..41b0e772 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4581,6 +4581,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4512
         - aeson < 1.4.3.0
 
+        # https://github.com/commercialhaskell/stackage/issues/4523
+        - doctest < 0.16.1
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of