From 10475ace2e433f479376a0ad6091eefebc503ddd Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Thu, 27 Jul 2017 13:35:09 +0300
Subject: [PATCH] Upper bound for #2666

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 52a5b002..d91bdc29 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3331,6 +3331,9 @@ packages:
 
         # https://github.com/fpco/stackage/issues/2661
         - servant-docs < 0.11
+
+        # https://github.com/fpco/stackage/issues/2666
+        - megaparsec < 6.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of