diff --git a/daily-guards.ts b/daily-guards.ts
new file mode 100644
index 000000000..b47a32d05
--- /dev/null
+++ b/daily-guards.ts
@@ -0,0 +1,81 @@
+import type {
+  DailyCall,
+  DailyAdvancedConfig,
+  DailyFactoryOptions,
+} from '@daily-co/daily-js';
+
+export interface SafeDailyAdvancedConfig extends Omit<DailyAdvancedConfig, 'alwaysIncludeMicInPermissionPrompt'> {
+  alwaysIncludeMicInPermissionPrompt?: true; // Only allow true
+}
+
+export interface SafeDailyFactoryOptions extends Omit<DailyFactoryOptions, 'audioSource'> {
+  audioSource?: string | boolean | MediaStreamTrack;
+}
+
+export function createSafeDailyConfig(
+  config?: Pick<DailyAdvancedConfig, 'avoidEval' | 'alwaysIncludeMicInPermissionPrompt'>
+): SafeDailyAdvancedConfig {
+  if (!config) return {};
+  
+  const { alwaysIncludeMicInPermissionPrompt, ...rest } = config;
+  
+  // Force true or remove the property entirely. This can cause Chrome 140+ issues
+  if (alwaysIncludeMicInPermissionPrompt === false) {
+    console.warn(
+      '[Vapi] alwaysIncludeMicInPermissionPrompt:false detected. ' +
+      'This can cause Chrome 140+ issues. Removing the property.'
+    );
+    return rest;
+  }
+  
+  return config as SafeDailyAdvancedConfig;
+}
+
+export function safeSetLocalAudio(call: DailyCall | null, enabled: boolean): void {
+  if (!call) {
+    throw new Error('Call object is not available.');
+  }
+  
+  // Never use forceDiscardTrack. This can cause Chrome 140+ issues
+  call.setLocalAudio(enabled);
+}
+
+export async function safeSetInputDevicesAsync(
+  call: DailyCall | null,
+  options: Parameters<DailyCall['setInputDevicesAsync']>[0]
+): Promise<void> {
+  if (!call) {
+    throw new Error('Call object is not available.');
+  }
+  
+  // Validate audioSource
+  if ('audioSource' in options && options.audioSource === false) {
+    console.warn(
+      '[Vapi] setInputDevicesAsync with audioSource:false detected. ' +
+      'This can cause Chrome 140+ issues. Using default device instead.'
+    );
+    
+    const { audioSource, ...safeOptions } = options;
+    await call.setInputDevicesAsync(safeOptions);
+    return;
+  }
+  
+  await call.setInputDevicesAsync(options);
+}
+
+export function createSafeDailyFactoryOptions(
+  options?: Pick<DailyFactoryOptions, 'audioSource' | 'startAudioOff'>
+): SafeDailyFactoryOptions {
+  if (!options) return {};
+  
+  // Ensure audioSource is never false
+  if (options.audioSource === false) {
+    console.warn(
+      '[Vapi] audioSource:false detected in factory options. ' +
+      'This can cause Chrome 140+ issues. Defaulting to true.'
+    );
+    return { ...options, audioSource: true };
+  }
+  
+  return options;
+}
diff --git a/package-lock.json b/package-lock.json
index 937677a45..643b564c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "2.3.9",
       "license": "MIT",
       "dependencies": {
-        "@daily-co/daily-js": "^0.80.0",
+        "@daily-co/daily-js": "^0.83.1",
         "events": "^3.3.0"
       },
       "devDependencies": {
@@ -589,9 +589,9 @@
       }
     },
     "node_modules/@daily-co/daily-js": {
-      "version": "0.80.0",
-      "resolved": "https://registry.npmjs.org/@daily-co/daily-js/-/daily-js-0.80.0.tgz",
-      "integrity": "sha512-zG2NBbKbHfm56P0lg4ddC94vBtn5AQKcgvbYrO5+ohNWPSolMqlJiYxQC9uhOHfFYRhH4ELKQ6NHqGatX9VD7A==",
+      "version": "0.83.1",
+      "resolved": "https://registry.npmjs.org/@daily-co/daily-js/-/daily-js-0.83.1.tgz",
+      "integrity": "sha512-KXA3zrSnNPZONwhip4TI6ayD3huumI1QBD/xPAjFArvHuFFB7t0QTOS2oxH1bXvdOBJ6XnY08vdlJslTVi2/2w==",
       "license": "BSD-2-Clause",
       "dependencies": {
         "@babel/runtime": "^7.12.5",
diff --git a/package.json b/package.json
index 1c23e9628..f9c88ab08 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "node": ">=18.0.0"
   },
   "dependencies": {
-    "@daily-co/daily-js": "^0.80.0",
+    "@daily-co/daily-js": "^0.83.1",
     "events": "^3.3.0"
   },
   "devDependencies": {
diff --git a/vapi.ts b/vapi.ts
index 1f69502cd..3809101fd 100644
--- a/vapi.ts
+++ b/vapi.ts
@@ -21,6 +21,12 @@ import {
   WorkflowOverrides,
 } from './api';
 import { client } from './client';
+import {
+  createSafeDailyConfig,
+  createSafeDailyFactoryOptions,
+  safeSetLocalAudio,
+  safeSetInputDevicesAsync,
+} from './daily-guards';
 
 export interface AddMessageMessage {
   type: 'add-message';
@@ -206,8 +212,8 @@ export default class Vapi extends VapiEventEmitter {
     super();
     client.baseUrl = apiBaseUrl ?? 'https://api.vapi.ai';
     client.setSecurityData(apiToken);
-    this.dailyCallConfig = dailyCallConfig ?? {};
-    this.dailyCallObject = dailyCallObject ?? {};
+    this.dailyCallConfig = createSafeDailyConfig(dailyCallConfig);
+    this.dailyCallObject = createSafeDailyFactoryOptions(dailyCallObject);
   }
 
   private cleanup() {
@@ -649,7 +655,7 @@ export default class Vapi extends VapiEventEmitter {
               },
             })
             .then(() => {
-              this.call?.setLocalAudio(true);
+              safeSetLocalAudio(this.call, true);
             });
         }
       });
@@ -805,10 +811,7 @@ export default class Vapi extends VapiEventEmitter {
   }
 
   public setMuted(mute: boolean) {
-    if (!this.call) {
-      throw new Error('Call object is not available.');
-    }
-    this.call.setLocalAudio(!mute);
+    safeSetLocalAudio(this.call, !mute);
   }
 
   public isMuted() {
@@ -832,7 +835,7 @@ export default class Vapi extends VapiEventEmitter {
   public setInputDevicesAsync(
     options: Parameters<DailyCall['setInputDevicesAsync']>[0],
   ) {
-    this.call?.setInputDevicesAsync(options);
+    return safeSetInputDevicesAsync(this.call, options);
   }
 
   public async increaseMicLevel(gain: number) {
@@ -855,7 +858,7 @@ export default class Vapi extends VapiEventEmitter {
       gainNode.connect(destination);
   
       const [boostedTrack] = destination.stream.getAudioTracks();
-      await this.call.setInputDevicesAsync({ audioSource: boostedTrack });      
+      await safeSetInputDevicesAsync(this.call, { audioSource: boostedTrack });      
     } catch (error) {
       console.error("Error adjusting microphone level:", error);
     }