diff --git a/perl/lib/Data/MessagePack.pm b/perl/lib/Data/MessagePack.pm
index d26bf9e..7b5604d 100644
--- a/perl/lib/Data/MessagePack.pm
+++ b/perl/lib/Data/MessagePack.pm
@@ -2,6 +2,7 @@ package Data::MessagePack;
 use strict;
 use warnings;
 use XSLoader;
+use 5.008001;
 
 our $VERSION = 0.01;