diff --git a/perl/Changes b/perl/Changes
index 13fc98b5..189990a8 100644
--- a/perl/Changes
+++ b/perl/Changes
@@ -1,3 +1,8 @@
+0.15
+
+    - better argument validation.
+      (Dan Kogai)
+
 0.14
 
     - fixed segv on serializing cyclic reference
diff --git a/perl/lib/Data/MessagePack.pm b/perl/lib/Data/MessagePack.pm
index 3c38a795..276353a2 100644
--- a/perl/lib/Data/MessagePack.pm
+++ b/perl/lib/Data/MessagePack.pm
@@ -4,7 +4,7 @@ use warnings;
 use XSLoader;
 use 5.008001;
 
-our $VERSION = '0.14';
+our $VERSION = '0.15';
 our $PreferInteger = 0;
 
 our $true  = do { bless \(my $dummy = 1), "Data::MessagePack::Boolean" };