From 1d2d92d22198cd32dde4e777867fa8b2ff27c12d Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Wed, 31 Dec 2014 10:47:15 +0200
Subject: [PATCH] Upper bound for #389

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 42b767e8..b7022782 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -641,6 +641,9 @@ packages:
         - monad-control < 1
         - lifted-async < 0.3
 
+        # https://github.com/fpco/stackage/issues/389
+        - lens < 4.7
+
 # Global flags are applied to all packages
 global-flags:
     blaze_html_0_5: true