diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1adff0d2..8943d63c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5893,7 +5893,7 @@ packages:
         - vector-algorithms
         - vector-space
         - verset
-        - vty
+        - vty < 6.6 # https://github.com/commercialhaskell/stackage/issues/8042
         - vty-crossplatform
         - vty-unix
         - wai