diff --git a/build-constraints.yaml b/build-constraints.yaml
index fa844ea5..8ee023a5 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -76,7 +76,7 @@ packages:
 
     "Nobutada Matsubara <t12307043@gunma-u.ac.jp> @matsubara0507":
         - chatwork
-        - rakuten < 0 # https://github.com/fpco/stackage/issues/3334
+        - rakuten
         - servant-kotlin
 
     "Pavol Klacansky <pavol@klacansky.com> @pavolzetor":
@@ -3423,6 +3423,9 @@ packages:
         - llvm-hs < 6
         - llvm-hs-pure < 6
 
+        # https://github.com/fpco/stackage/issues/3334
+        - extensible < 0.4.7.2
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of