From 589fee65b202388e59d40aa34eb41bf825caebe8 Mon Sep 17 00:00:00 2001
From: Adam Bergmark <adam@bergmark.nl>
Date: Mon, 19 Dec 2016 17:19:28 +0100
Subject: [PATCH] rattletrap upper bound for #2148

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3e708d88..b69071f4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2732,6 +2732,9 @@ packages:
 
         # https://github.com/fpco/stackage/issues/2147
         - clckwrks < 0.24.0
+
+        # https://github.com/fpco/stackage/issues/2148
+        - rattletrap < 2.1.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of