From 1d818cad147f5d97f7f4be301ac5bb036a45b2ab Mon Sep 17 00:00:00 2001
From: Mihai Maruseac <mihai.maruseac@gmail.com>
Date: Sat, 13 Mar 2021 16:45:32 -0800
Subject: [PATCH] Upper bound `mmark` (#5878)

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3a80ec60..823522a1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6877,6 +6877,7 @@ packages:
 
       # https://github.com/commercialhaskell/stackage/issues/5878
       - hashable < 1.3.1.0
+      - mmark < 0.0.7.3
 
       # https://github.com/commercialhaskell/stackage/issues/5881
       - optics < 0.4