diff --git a/README.md b/README.md
index f0eda2c..c57310e 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,8 @@ This CWE SDK has a build process that prepares the JSON data by downloading the
 
 This work is made possible thanks to scripts in `./build/`
 
+To run it, execute `yarn run build`
+
 # Contributing
 
 Please consult [CONTRIBUTING](./CONTRIBUTING.md) for guidelines on contributing to this project.
diff --git a/__tests__/CweManager.test.js b/__tests__/CweManager.test.js
index 2c4f35a..5e6ce2f 100644
--- a/__tests__/CweManager.test.js
+++ b/__tests__/CweManager.test.js
@@ -61,7 +61,7 @@ describe('Cwe Manager', () => {
     test('A CWE ID with memberships should return an array of ids', () => {
       const cweManager = new CweManager()
       const result = cweManager.getMemberships({ weaknessId: '778' })
-      expect(result).toStrictEqual(['1009', '1036', '1210', '1308'])
+      expect(result).toStrictEqual(['1009', '1036', '1210', '1308', '1355', '1413'])
     })
   })
 })
diff --git a/build/xmlParser.js b/build/xmlParser.js
index edaa745..9853ab3 100644
--- a/build/xmlParser.js
+++ b/build/xmlParser.js
@@ -3,7 +3,7 @@
 /* eslint-disable security/detect-object-injection */
 /* eslint-disable security/detect-non-literal-fs-filename */
 const fs = require('fs')
-const parser = require('fast-xml-parser')
+const { XMLParser, XMLValidator } = require('fast-xml-parser')
 const debug = require('debug')('cwe-sdk:build')
 
 function createCweDictionary({ cweArchive }) {
@@ -76,7 +76,7 @@ function convertXmlArchiveToJson({ cweArchiveFilepath }) {
 
   const options = {
     attributeNamePrefix: '@_',
-    attrNodeName: 'attr',
+    attributesGroupName: 'attr',
     textNodeName: '#text',
     ignoreAttributes: false,
     ignoreNameSpace: false,
@@ -88,11 +88,12 @@ function convertXmlArchiveToJson({ cweArchiveFilepath }) {
     arrayMode: false
   }
 
-  if (parser.validate(xmlData) !== true) {
+  if (XMLValidator.validate(xmlData) !== true) {
     // @TODO xmlData is not valid
   }
 
-  const rawJsonCweArchive = parser.parse(xmlData, options)
+  const parser = new XMLParser(options)
+  const rawJsonCweArchive = parser.parse(xmlData)
   return rawJsonCweArchive
 }