diff --git a/build-constraints.yaml b/build-constraints.yaml
index 04da0ef4..6e0b9828 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9,7 +9,7 @@ cabal-format-version: "2.2"
 packages:
     "Antonio Alonso Dominguez <alonso.domin@gmail.com> @alonsodomin":
         - hschema
-        # - hschema-aeson # https://github.com/alonsodomin/haskell-schema/issues/10
+        - hschema-aeson
         - hschema-quickcheck
         - hschema-prettyprinter
 
@@ -4216,7 +4216,6 @@ packages:
         - wss-client < 0
         - wuss < 0
         - xml-html-qq < 0
-        - xmonad-contrib < 0
         - yesod-auth-hashdb < 0
 
         # failed to build