diff --git a/xenomorph/xenomorph/private/base.rkt b/xenomorph/xenomorph/private/base.rkt
index 3d2cc61d..d62377b9 100644
--- a/xenomorph/xenomorph/private/base.rkt
+++ b/xenomorph/xenomorph/private/base.rkt
@@ -1,5 +1,5 @@
 #lang racket/base
-(require racket/class sugar/class racket/generic racket/private/generic-methods "generic.rkt" racket/port racket/dict racket/function)
+(require racket/class sugar/unstable/class racket/generic racket/private/generic-methods "generic.rkt" racket/port racket/dict racket/function)
 (require sugar/debug)
 (provide (all-defined-out))
 (define-generics posable
diff --git a/xenomorph/xenomorph/private/racket.rkt b/xenomorph/xenomorph/private/racket.rkt
index 4c319ee3..69f34766 100644
--- a/xenomorph/xenomorph/private/racket.rkt
+++ b/xenomorph/xenomorph/private/racket.rkt
@@ -15,12 +15,12 @@
      racket/function
      br/define
      sugar/define
-     sugar/class
-     sugar/js
-     sugar/dict
-     sugar/stub
-     sugar/port
-     sugar/case)
+     sugar/unstable/class
+     sugar/unstable/js
+     sugar/unstable/dict
+     sugar/unstable/stub
+     sugar/unstable/port
+     sugar/unstable/case)
 
 (provide define-procedures)
 (define-macro (define-procedures (NEW ...) (OLD ...))