diff --git a/build-constraints.yaml b/build-constraints.yaml
index 32e48573..35b6d2e0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4729,6 +4729,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4703
         - tomland < 1.1.0.0
 
+        # https://github.com/commercialhaskell/stackage/issues/4709
+        - base-unicode-symbols < 0.2.4
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of