diff --git a/META6.json b/META6.json
index 36d8d6c..613f5b1 100644
--- a/META6.json
+++ b/META6.json
@@ -5,7 +5,12 @@
   ],
   "build-depends" : [
     "LibraryMake",
-    "Zef::Fetch"
+    "Zef::Fetch",
+    "Zef::Extract",
+    "Zef::Service::Shell::wget",
+    "Zef::Service::Shell::curl",
+    "Zef::Service::Shell::tar",
+    "Zef::Service::Shell::p5tar"
   ],
   "depends" : [ ],
   "description" : "A Perl 6 bindings for libmecab ( http://taku910.github.io/mecab/ )",