diff --git a/Gemfile.lock b/Gemfile.lock
index 301191c..d95e869 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    decanter (4.0.4)
+    decanter (4.0.5)
       actionpack (>= 4.2.10)
       activesupport
       rails-html-sanitizer (>= 1.0.4)
diff --git a/lib/decanter/parser/array_parser.rb b/lib/decanter/parser/array_parser.rb
index e52848d..4753d57 100644
--- a/lib/decanter/parser/array_parser.rb
+++ b/lib/decanter/parser/array_parser.rb
@@ -1,6 +1,6 @@
 module Decanter
   module Parser
-    class ArrayParser < ValueParser
+    class ArrayParser < Base
 
       DUMMY_VALUE_KEY = '_'.freeze
 
@@ -10,7 +10,7 @@ class ArrayParser < ValueParser
         # Fetch parser classes for provided keys
         parse_each = options.fetch(:parse_each, :pass)
         item_parsers = Parser.parsers_for(Array.wrap(parse_each))
-        unless item_parsers.all? { |parser| parser <= ValueParser }
+        unless item_parsers.all? { |parser| parser <= ValueParser || parser <= PassParser } 
           raise Decanter::ParseError.new 'parser(s) for array items must subclass ValueParser'
         end
         # Compose supplied parsers
diff --git a/lib/decanter/parser/boolean_parser.rb b/lib/decanter/parser/boolean_parser.rb
index 5ac6ca4..ff666e4 100644
--- a/lib/decanter/parser/boolean_parser.rb
+++ b/lib/decanter/parser/boolean_parser.rb
@@ -5,7 +5,6 @@ class BooleanParser < ValueParser
       allow TrueClass, FalseClass
 
       parser do |val, options|
-        raise Decanter::ParseError.new 'Expects a single value' if val.is_a? Array
         next if (val.nil? || val === '')
         [1, '1'].include?(val) || !!/^true$/i.match?(val.to_s)
       end
diff --git a/lib/decanter/parser/core.rb b/lib/decanter/parser/core.rb
index 8254c67..f185ee8 100644
--- a/lib/decanter/parser/core.rb
+++ b/lib/decanter/parser/core.rb
@@ -8,6 +8,10 @@ def self.included(base)
 
       module ClassMethods
 
+        def _parse(name, value, options={})
+          { name => @parser.call(value, options) }
+        end
+
         # Check if allowed, parse if not
         def parse(name, value, options={})
           if allowed?(value)
diff --git a/lib/decanter/parser/date_parser.rb b/lib/decanter/parser/date_parser.rb
index 4b8ac74..8af7f08 100644
--- a/lib/decanter/parser/date_parser.rb
+++ b/lib/decanter/parser/date_parser.rb
@@ -5,7 +5,6 @@ class DateParser < ValueParser
       allow Date
 
       parser do |val, options|
-        raise Decanter::ParseError.new 'Expects a single value' if val.is_a? Array
         next if (val.nil? || val === '')
         parse_format = options.fetch(:parse_format, '%m/%d/%Y')
         ::Date.strptime(val, parse_format)
diff --git a/lib/decanter/parser/datetime_parser.rb b/lib/decanter/parser/datetime_parser.rb
index 68fafda..08dbb99 100644
--- a/lib/decanter/parser/datetime_parser.rb
+++ b/lib/decanter/parser/datetime_parser.rb
@@ -5,7 +5,6 @@ class DateTimeParser < ValueParser
       allow DateTime
 
       parser do |val, options|
-        raise Decanter::ParseError.new 'Expects a single value' if val.is_a? Array
         next if (val.nil? || val === '')
         parse_format = options.fetch(:parse_format, '%m/%d/%Y %I:%M:%S %p')
         ::DateTime.strptime(val, parse_format)
diff --git a/lib/decanter/parser/float_parser.rb b/lib/decanter/parser/float_parser.rb
index ef0cd33..37af36f 100644
--- a/lib/decanter/parser/float_parser.rb
+++ b/lib/decanter/parser/float_parser.rb
@@ -6,7 +6,6 @@ class FloatParser < ValueParser
       allow Float, Integer
 
       parser do |val, options|
-        raise Decanter::ParseError.new 'Expects a single value' if val.is_a? Array
         next if (val.nil? || val === '')
         val.scan(REGEX).join.try(:to_f)
       end
diff --git a/lib/decanter/parser/integer_parser.rb b/lib/decanter/parser/integer_parser.rb
index 39587c9..6069980 100644
--- a/lib/decanter/parser/integer_parser.rb
+++ b/lib/decanter/parser/integer_parser.rb
@@ -6,7 +6,6 @@ class IntegerParser < ValueParser
       allow Integer
 
       parser do |val, options|
-        raise Decanter::ParseError.new 'Expects a single value' if val.is_a? Array
         next if (val.nil? || val === '')
         val.is_a?(Float) ?
           val.to_i :
diff --git a/lib/decanter/parser/pass_parser.rb b/lib/decanter/parser/pass_parser.rb
index 4a36ecf..0cfeea7 100644
--- a/lib/decanter/parser/pass_parser.rb
+++ b/lib/decanter/parser/pass_parser.rb
@@ -1,6 +1,6 @@
 module Decanter
   module Parser
-    class PassParser < ValueParser
+    class PassParser < Base
 
       parser do |val, options|
         next if (val.nil? || val == '')
diff --git a/lib/decanter/parser/phone_parser.rb b/lib/decanter/parser/phone_parser.rb
index 229ac67..1d4064a 100644
--- a/lib/decanter/parser/phone_parser.rb
+++ b/lib/decanter/parser/phone_parser.rb
@@ -6,7 +6,6 @@ class PhoneParser < ValueParser
       allow Integer
 
       parser do |val, options|
-        raise Decanter::ParseError.new 'Expects a single value' if val.is_a? Array
         next if (val.nil? || val === '')
         val.scan(REGEX).join.to_s
       end
diff --git a/lib/decanter/parser/string_parser.rb b/lib/decanter/parser/string_parser.rb
index c3c8745..457be7c 100644
--- a/lib/decanter/parser/string_parser.rb
+++ b/lib/decanter/parser/string_parser.rb
@@ -2,7 +2,6 @@ module Decanter
   module Parser
     class StringParser < ValueParser
       parser do |val, options|
-        raise Decanter::ParseError.new 'Expects a single value' if val.is_a? Array
         next if (val.nil? || val === '')
         next val if val.is_a? String
         val.to_s
diff --git a/lib/decanter/parser/value_parser.rb b/lib/decanter/parser/value_parser.rb
index 2f2fe71..4ac5cea 100644
--- a/lib/decanter/parser/value_parser.rb
+++ b/lib/decanter/parser/value_parser.rb
@@ -3,8 +3,16 @@
 module Decanter
   module Parser
     class ValueParser < Base
+
       def self._parse(name, value, options={})
-        { name => @parser.call(value, options) }
+        self.validate_singularity(value)
+        super(name, value, options)
+      end
+
+      private
+
+      def self.validate_singularity(value)
+        raise Decanter::ParseError.new 'Expects a single value' if value.is_a? Array
       end
     end
   end
diff --git a/lib/decanter/version.rb b/lib/decanter/version.rb
index 09aa6a1..ede1e76 100644
--- a/lib/decanter/version.rb
+++ b/lib/decanter/version.rb
@@ -1,3 +1,3 @@
 module Decanter
-  VERSION = '4.0.4'.freeze
+  VERSION = '4.0.5'.freeze
 end