diff --git a/build-constraints.yaml b/build-constraints.yaml
index a4177c7f..3594bccc 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2891,6 +2891,9 @@ packages:
         # https://github.com/fpco/stackage/issues/2345
         - syb < 0.7
 
+        # https://github.com/fpco/stackage/issues/2354
+        - mainland-pretty < 0.5.0.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of