diff --git a/preproduction-azure-pipelines.yml b/preproduction-azure-pipelines.yml
index 0f888ebbd851..4158edcf2393 100644
--- a/preproduction-azure-pipelines.yml
+++ b/preproduction-azure-pipelines.yml
@@ -51,7 +51,7 @@ jobs:
     inputs:
       verbose: false
   - script: 'npm install -D @azure/rest-api-specs-scripts@0.3.9'
-  - script: 'npm run tsc && node scripts/semanticValidation.js'
+  - script: 'npm run tsc && node scripts/semanticValidation2.js'
     displayName: 'Semantic Validation'
 
 - job: "ModelValidation"
@@ -63,7 +63,7 @@ jobs:
     inputs:
       verbose: false
   - script: 'npm install -D @azure/rest-api-specs-scripts@0.3.9'
-  - script: 'npm run tsc && node scripts/modelValidation.js'
+  - script: 'npm run tsc && node scripts/modelValidation2.js'
     displayName: 'Model Validation'
 
 - job: "Avocado"
diff --git a/scripts/modelValidation2.js b/scripts/modelValidation2.js
new file mode 100644
index 000000000000..dbecf2b83d2a
--- /dev/null
+++ b/scripts/modelValidation2.js
@@ -0,0 +1,7 @@
+"use strict";
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License in the project root for license information.
+Object.defineProperty(exports, "__esModule", { value: true });
+const rest_api_specs_scripts_1 = require("@azure/rest-api-specs-scripts");
+rest_api_specs_scripts_1.modelValidation.main().catch(e => { console.log(e); process.exit(1); });
+//# sourceMappingURL=modelValidation2.js.map
\ No newline at end of file
diff --git a/scripts/semanticValidation2.js b/scripts/semanticValidation2.js
new file mode 100644
index 000000000000..0cb8089fd62f
--- /dev/null
+++ b/scripts/semanticValidation2.js
@@ -0,0 +1,7 @@
+"use strict";
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See License in the project root for license information.
+Object.defineProperty(exports, "__esModule", { value: true });
+const rest_api_specs_scripts_1 = require("@azure/rest-api-specs-scripts");
+rest_api_specs_scripts_1.semanticValidation.main().catch(e => { console.log(e); process.exit(1); });
+//# sourceMappingURL=semanticValidation2.js.map
\ No newline at end of file
diff --git a/tsconfig.json b/tsconfig.json
index e05dca6c434d..0556c9a9cc08 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     /* Basic Options */
-    "target": "esnext",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
+    "target": "es2019",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
     "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
     // "lib": [],                             /* Specify library files to be included in the compilation. */
     // "allowJs": true,                       /* Allow javascript files to be compiled. */