diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9cd79cfe..8d6efa9e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3909,6 +3909,9 @@ packages:
 
         # https://github.com/commercialhaskell/stackage/issues/4290
         - http-client < 0.6
+
+        # https://github.com/commercialhaskell/stackage/issues/4297
+        - tomland < 1.0.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of