diff --git a/extlib/benz b/extlib/benz
index ec490286..b20a97ed 160000
--- a/extlib/benz
+++ b/extlib/benz
@@ -1 +1 @@
-Subproject commit ec490286180c87f53b0524d020246fed7bf83ce0
+Subproject commit b20a97ed9fbc3bfcbf12158f4c2001d983e50c2d
diff --git a/piclib/picrin/base.scm b/piclib/picrin/base.scm
index 93fde0ca..ec0f1140 100644
--- a/piclib/picrin/base.scm
+++ b/piclib/picrin/base.scm
@@ -121,7 +121,9 @@
           member
           assq
           assv
-          assoc)
+          assoc
+          map
+          for-each)
 
   (export bytevector?
           bytevector
@@ -264,8 +266,6 @@
 
   (export procedure?
           apply
-          map
-          for-each
           attribute)
 
   (export read)