diff --git a/build-constraints.yaml b/build-constraints.yaml
index d46c29bb..00a80a3c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -807,7 +807,7 @@ packages:
         - githash
 
         - time-manager
-        - pantry
+        - pantry < 0  # via aeson 2, https://github.com/commercialhaskell/stackage/issues/6441
         - mega-sdist
         - http-download
         - hi-file-parser