diff --git a/app/dociql/fetch-schema.js b/app/dociql/fetch-schema.js
index c4505e1c..f5246e51 100644
--- a/app/dociql/fetch-schema.js
+++ b/app/dociql/fetch-schema.js
@@ -1,13 +1,12 @@
-const graphql = require('graphql')
+const { getIntrospectionQuery, buildClientSchema } = require('graphql')
 const request = require("sync-request")
 
 const converter = require('graphql-2-json-schema');
 
-module.exports = function (graphUrl, authHeader) {
-
+module.exports = function (graphUrl, authHeader) { 
     const requestBody = {
         operationName: "IntrospectionQuery",
-        query: graphql.introspectionQuery
+        query: getIntrospectionQuery()
     };
 
     const headers = authHeader ? Object.fromEntries([authHeader.split(":")]) : {};
@@ -17,10 +16,10 @@ module.exports = function (graphUrl, authHeader) {
         json: requestBody
     }).getBody('utf8');
 
-    const introspectionResponse = JSON.parse(responseBody);    
+    const introspectionResponse = JSON.parse(responseBody);   
 
+    const graphQLSchema = buildClientSchema(introspectionResponse.data);
     const jsonSchema = converter.fromIntrospectionQuery(introspectionResponse.data);
-    const graphQLSchema = graphql.buildClientSchema(introspectionResponse.data, { assumeValid: true});
 
     return {
         jsonSchema,
diff --git a/package.json b/package.json
index 93096d6c..17ccfe3c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dociql",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "description": "Generate beautiful static API documentation from GraphQL Schema",
   "preferGlobal": true,
   "bin": {