From c34a280bfc0cec25ba2981555aed0b189ec4cfbe Mon Sep 17 00:00:00 2001
From: Jens Petersen <juhpetersen@gmail.com>
Date: Sun, 6 Sep 2026 18:39:50 +0800
Subject: [PATCH] ghc-tcplugin-api < 0.20 (#8112)

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

diff --git a/build-constraints.yaml b/build-constraints.yaml
index cde95127..6f3fad42 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7931,6 +7931,9 @@ packages:
 
         # https://github.com/commercialhaskell/stackage/issues/8111
         - Diff < 2
+
+        # https://github.com/commercialhaskell/stackage/issues/8112
+        - ghc-tcplugin-api < 0.20
     # end of Stackage upper bounds
 # end of packages