diff --git a/build-constraints.yaml b/build-constraints.yaml
index 93f72215..4e7f6b00 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6772,6 +6772,9 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/6265
       - attoparsec < 0.14.2
 
+      # https://github.com/commercialhaskell/stackage/issues/6268
+      - hashable < 1.4.0.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of