diff --git a/build-constraints.yaml b/build-constraints.yaml
index f1815256..9a37e4ae 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -53,7 +53,7 @@ packages:
     "Nobutada Matsubara <t12307043@gunma-u.ac.jp> @matsubara0507":
         - chatwork
         - rakuten
-        - servant-kotlin
+        # - servant-kotlin # formatting 6.3
 
     "Pavol Klacansky <pavol@klacansky.com> @pavolzetor":
         - openexr-write
@@ -3133,9 +3133,6 @@ packages:
         # https://github.com/fpco/stackage/issues/3046
         - persistent < 2.7.2
 
-        # https://github.com/fpco/stackage/issues/3130
-        - formatting < 6.3.0
-
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of