From d3b49537816f02186418edb7ba96213d72527864 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20L=C3=A4ndle?=
 <969523+alaendle@users.noreply.github.com>
Date: Sun, 11 Jan 2026 20:34:18 +0100
Subject: [PATCH] Avoid defect `mealy` version (@tonyday567).

---
 build-constraints.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-constraints.yaml b/build-constraints.yaml
index 400a2f58..d52a24c5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3737,7 +3737,7 @@ packages:
         - harpie
         - harpie-numhask
         - markup-parse
-        - mealy
+        - mealy < 0.5.1.0 || > 0.5.1.0 # compilation fails for this version
         - numhask
         - numhask-space
         - perf