diff --git a/src/common/constants.ts b/src/common/constants.ts
index 2e076d4d7..50b7d270b 100644
--- a/src/common/constants.ts
+++ b/src/common/constants.ts
@@ -1,6 +1,8 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
+const apiVersion = "v2.1-preview.1";
+
 /**
  * Constants used throughout application
  */
@@ -22,9 +24,7 @@ export const constants = {
     convertedImageQuality: 0.7,
     convertedThumbnailQuality: 0.2,
 
-    apiModelsPath: "/formrecognizer/v2.0-preview/custom/models",
-    apiPreviewPath: "/formrecognizer/v2.1-preview.1/custom/models",
-    apiPreviewComposePath: "/formrecognizer/v2.1-preview.1/custom/models/compose",
+    apiModelsPath: `/formrecognizer/${apiVersion}/custom/models`,
 
     pdfjsWorkerSrc(version: string) {
         return `//fotts.azureedge.net/npm/pdfjs-dist/${version}/pdf.worker.js`;
diff --git a/src/react/components/pages/modelCompose/modelCompose.tsx b/src/react/components/pages/modelCompose/modelCompose.tsx
index ce056113a..63b7137dc 100644
--- a/src/react/components/pages/modelCompose/modelCompose.tsx
+++ b/src/react/components/pages/modelCompose/modelCompose.tsx
@@ -364,7 +364,7 @@ export default class ModelComposePage extends React.Component<IModelComposePageP
                 composedModelIds = this.getComposedIds();
                 predictModelFlag = true;
                 if (composedModelIds.indexOf(this.state.composeModelId[0]) === -1) {
-                    const idURL = constants.apiPreviewPath + "/" + this.state.composeModelId[0];
+                    const idURL = constants.apiModelsPath + "/" + this.state.composeModelId[0];
                     const newComposeModel = await this.getComposeModelByURl(idURL);
                     composedModels.push(newComposeModel);
                     composedModelIds.push(this.state.composeModelId[0]);
@@ -410,7 +410,7 @@ export default class ModelComposePage extends React.Component<IModelComposePageP
     private reloadComposedModel = (models: IModel[]): IModel[] => {
         models.forEach(async (m) => {
             if (m.status !== "ready" && m.status !== "invalid") {
-                const url = constants.apiPreviewPath + "/" + m.modelId;
+                const url = constants.apiModelsPath + "/" + m.modelId;
                 const newModel = await this.getComposeModelByURl(url);
                 const newStatus = newModel.status;
                 m.status = newStatus;
@@ -487,7 +487,7 @@ export default class ModelComposePage extends React.Component<IModelComposePageP
     private async getResponse(nextLink?: string) {
         const baseURL = nextLink === undefined ? url.resolve(
             this.props.project.apiUriBase,
-            constants.apiPreviewPath,
+            constants.apiModelsPath,
         ) : url.resolve(
             this.props.project.apiUriBase,
             nextLink,
@@ -614,7 +614,7 @@ export default class ModelComposePage extends React.Component<IModelComposePageP
                     modelIds: idList,
                     modelName: name,
                 };
-                const link = constants.apiPreviewComposePath;
+                const link = constants.apiModelsPath + "/compose";
                 const composeRes = await this.post(link, payload);
                 const composeModelId = this.getComposeModelId(composeRes);
                 const newCols = this.state.columns;
diff --git a/src/react/components/pages/train/trainPage.tsx b/src/react/components/pages/train/trainPage.tsx
index 470850855..194b5a025 100644
--- a/src/react/components/pages/train/trainPage.tsx
+++ b/src/react/components/pages/train/trainPage.tsx
@@ -244,7 +244,7 @@ export default class TrainPage extends React.Component<ITrainPageProps, ITrainPa
     private async train(): Promise<any> {
         const baseURL = url.resolve(
             this.props.project.apiUriBase,
-            constants.apiPreviewPath,
+            constants.apiModelsPath,
         );
         const provider = this.props.project.sourceConnection.providerOptions as any;
         const trainSourceURL = provider.sas;