diff --git a/build-constraints.yaml b/build-constraints.yaml
index 049fe456..66af7c68 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8039,6 +8039,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/7848
         - heck < 1.0
 
+        # https://github.com/commercialhaskell/stackage/issues/7850
+        - xlsx < 1.2
+
     # end of Stackage upper bounds
 # end of packages