From 20a6d58cb1c8b8475a02da9beb52a4cab20d4514 Mon Sep 17 00:00:00 2001
From: Michael Snoyman <michael@snoyman.com>
Date: Tue, 6 Jan 2015 07:18:15 +0200
Subject: [PATCH] Upper bound for #401

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 13b55a4c..fbafff3e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -669,6 +669,9 @@ packages:
         # https://github.com/fpco/stackage/issues/398
         - monoid-subclasses < 0.4
 
+        # https://github.com/fpco/stackage/issues/401
+        - happstack-server < 7.4
+
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: