diff --git a/META.info b/META.info
index 5f9fb78..637ffe6 100644
--- a/META.info
+++ b/META.info
@@ -2,7 +2,7 @@
    "provides" : {
       "JSON::Class" : "lib/JSON/Class.pm"
    },
-   "version" : "0.0.4",
+   "version" : "0.0.5",
    "test-depends" : [
       "Test"
    ],
diff --git a/lib/JSON/Class.pm b/lib/JSON/Class.pm
index f9d3b57..90c60e7 100644
--- a/lib/JSON/Class.pm
+++ b/lib/JSON/Class.pm
@@ -74,13 +74,13 @@ though.)
 =end pod
 
 use JSON::Unmarshal;
-use JSON::Marshal;
+use JSON::Marshal:ver(v0.0.6..*);
 
 sub EXPORT {
     { '&trait_mod:<is>'    =>  &trait_mod:<is> }
 }
 
-role JSON::Class:ver<0.0.4>:auth<github:jonathanstowe> {
+role JSON::Class:ver<0.0.5>:auth<github:jonathanstowe> {
 
 
     method from-json(Str $json) returns JSON::Class {