diff --git a/extensions/azurePublish/src/node/azureResourceManager/azureResourceManager.ts b/extensions/azurePublish/src/node/azureResourceManager/azureResourceManager.ts
index c4aaab0530..1982be277f 100644
--- a/extensions/azurePublish/src/node/azureResourceManager/azureResourceManager.ts
+++ b/extensions/azurePublish/src/node/azureResourceManager/azureResourceManager.ts
@@ -883,7 +883,7 @@ export class AzureResourceMananger {
               },
               {
                 name: 'FUNCTIONS_WORKER_RUNTIME',
-                value: 'dotnet',
+                value: config.workerRuntime || 'dotnet',
               },
               {
                 name: 'APPINSIGHTS_INSTRUMENTATIONKEY',
diff --git a/extensions/azurePublish/src/node/azureResourceManager/azureResourceManagerConfig.ts b/extensions/azurePublish/src/node/azureResourceManager/azureResourceManagerConfig.ts
index 5c84fc1325..628d8f6b9d 100644
--- a/extensions/azurePublish/src/node/azureResourceManager/azureResourceManagerConfig.ts
+++ b/extensions/azurePublish/src/node/azureResourceManager/azureResourceManagerConfig.ts
@@ -114,6 +114,11 @@ export interface AzureFunctionsConfig {
   appId?: string;
   appPwd?: string;
   instrumentationKey?: string;
+  /**
+   * The worker runtime language.
+   * Currently documented values: dotnet, node, java, python, or powershell
+   */
+  workerRuntime?: string;
 }
 
 export interface DeploymentsConfig {
diff --git a/extensions/azurePublish/src/node/index.ts b/extensions/azurePublish/src/node/index.ts
index a3b87b9ecf..d2375931ae 100644
--- a/extensions/azurePublish/src/node/index.ts
+++ b/extensions/azurePublish/src/node/index.ts
@@ -274,10 +274,14 @@ export default async (composer: IExtensionRegistration): Promise<void> => {
     /* These methods provision resources to azure async */
     /*******************************************************************************************************************************/
     asyncProvision = async (jobId: string, config: ProvisionConfig, project: IBotProject, user): Promise<void> => {
-      const { subscription, name } = config;
+      const { runtimeLanguage } = parseRuntimeKey(project.settings?.runtime?.key);
+      const provisionConfig: ProvisionConfig = { ...config, workerRuntime: runtimeLanguage };
+
+      const { name } = provisionConfig;
+
       // Create the object responsible for actually taking the provision actions.
       const azureProvisioner = new BotProjectProvision({
-        ...config,
+        ...provisionConfig,
         logger: (msg: any) => {
           this.logger(msg);
           BackgroundProcessManager.updateProcess(jobId, 202, msg.message);
@@ -287,26 +291,28 @@ export default async (composer: IExtensionRegistration): Promise<void> => {
       // perform the provision using azureProvisioner.create.
       // this will start the process, then return.
       // However, the process will continue in the background
-      const provisionResults = await azureProvisioner.create(config);
+      const provisionResults = await azureProvisioner.create(provisionConfig);
 
       // cast this into the right form for a publish profile
       let currentProfile = null;
-      if (config.currentProfile) {
-        currentProfile = JSON.parse(config.currentProfile.configuration);
+      if (provisionConfig.currentProfile) {
+        currentProfile = JSON.parse(provisionConfig.currentProfile.configuration);
       }
       const currentSettings = currentProfile?.settings;
 
       const publishProfile = {
-        name: currentProfile?.name ?? config.hostname,
+        name: currentProfile?.name ?? provisionConfig.hostname,
         environment: currentProfile?.environment ?? 'composer',
         tenantId: provisionResults?.tenantId ?? currentProfile?.tenantId,
         subscriptionId: provisionResults.subscriptionId ?? currentProfile?.subscriptionId,
         resourceGroup: currentProfile?.resourceGroup ?? provisionResults.resourceGroup?.name,
         botName: currentProfile?.botName ?? provisionResults.botName,
-        hostname: config.hostname ?? currentProfile?.hostname,
-        luisResource: provisionResults.luisPrediction ? `${config.hostname}-luis` : currentProfile?.luisResource,
+        hostname: provisionConfig.hostname ?? currentProfile?.hostname,
+        luisResource: provisionResults.luisPrediction
+          ? `${provisionConfig.hostname}-luis`
+          : currentProfile?.luisResource,
         runtimeIdentifier: currentProfile?.runtimeIdentifier ?? 'win-x64',
-        region: config.location,
+        region: provisionConfig.location,
         settings: {
           applicationInsights: {
             InstrumentationKey:
@@ -355,7 +361,7 @@ export default async (composer: IExtensionRegistration): Promise<void> => {
       await this.persistProvisionHistory(jobId, name, provisionHistoryPath);
 
       // add in history
-      this.addProvisionHistory(project.id, config.name, BackgroundProcessManager.getStatus(jobId));
+      this.addProvisionHistory(project.id, provisionConfig.name, BackgroundProcessManager.getStatus(jobId));
       BackgroundProcessManager.removeProcess(jobId);
     };
 
diff --git a/extensions/azurePublish/src/node/provision.ts b/extensions/azurePublish/src/node/provision.ts
index fb46fddfb8..93d405d797 100644
--- a/extensions/azurePublish/src/node/provision.ts
+++ b/extensions/azurePublish/src/node/provision.ts
@@ -23,6 +23,11 @@ export interface ProvisionConfig {
   logger?: (string) => any;
   name: string; // profile name
   type: string; // webapp or function
+  /**
+   * The worker runtime language for Azure functions.
+   * Currently documented values: dotnet, node, java, python, or powershell
+   */
+  workerRuntime?: string;
   choice?: string;
   [key: string]: any;
 }
@@ -326,6 +331,7 @@ export class BotProjectProvision {
               resourceGroupName: resourceGroupName,
               location: config.location ?? provisionResults.resourceGroup.location,
               name: config.hostname,
+              workerRuntime: config.workerRuntime,
             });
             provisionResults.webApp = {
               hostname: functionsHostName,