Binary type for attribute was getting override to Value type for 5.1 due to this.

Author: priyankatapar

lib/attr_encrypted/adapters/active_record.rb

@@ -51,7 +51,10 @@ def attr_encrypted(*attrs)
             super
             options = attrs.extract_options!
             attr = attrs.pop
-            attribute attr if ::ActiveRecord::VERSION::STRING >= "5.1.0"
+            if ::ActiveRecord::VERSION::STRING >= "5.1.0"
+              column_type = columns_hash[attr.to_s].type unless columns_hash[attr.to_s].nil?
+              column_type.nil? ? attribute(attr) : attribute(attr, column_type)
+            end
             options.merge! encrypted_attributes[attr]
 
             define_method("#{attr}_was") do