From 14215b3cf9dbe7949a0e4daf451df5935be2fc7a Mon Sep 17 00:00:00 2001
From: Adam Bergmark <adam@bergmark.nl>
Date: Thu, 1 Mar 2018 10:06:29 +0100
Subject: [PATCH] async-timer upper bound for #3268

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 83f0714c..03d5a10f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3359,6 +3359,7 @@ packages:
 
         # https://github.com/fpco/stackage/issues/3268
         - async < 2.2
+        - async-timer < 0.2
 
         # https://github.com/fpco/stackage/issues/3278
         - lifted-async < 0.10