diff --git a/README.md b/README.md
index ceab20a..1e2dce3 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,6 @@ curl -L -X POST 'http://localhost:8191/v1' \
 --data-raw '{
   "cmd": "request.get",
   "url":"http://www.google.com/",
-  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleW...",
   "maxTimeout": 60000,
   "headers": {
     "X-Test": "Testing 123..."
@@ -107,7 +106,6 @@ This also speeds up the requests since it won't have to launch a new browser ins
 Parameter | Notes
 |--|--|
 session | Optional. The session ID that you want to be assigned to the instance. If isn't set a random UUID will be assigned.
-userAgent | Optional. Will be used by the headless browser.
 
 #### + `sessions.list`
 
diff --git a/src/index.ts b/src/index.ts
index 0cc03e8..62064d0 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -46,7 +46,6 @@ async function testChromeInstallation() {
   fs.writeFileSync(filePath, fileContent)
   // launch the browser
   const session = await sessions.create(sessionId, {
-    userAgent: null,
     oneTimeSession: true
   })
   const page = await session.browser.newPage()
diff --git a/src/routes.ts b/src/routes.ts
index c4b9f56..3cb0041 100644
--- a/src/routes.ts
+++ b/src/routes.ts
@@ -16,7 +16,6 @@ interface BaseSessionsAPICall extends BaseAPICall {
 }
 
 interface SessionsCreateAPICall extends BaseSessionsAPICall {
-  userAgent?: string,
   cookies?: SetCookie[],
   headers?: Headers
   maxTimeout?: number
@@ -28,7 +27,7 @@ interface BaseRequestAPICall extends BaseAPICall {
   method?: HttpMethod
   postData?: string
   session?: string
-  userAgent?: string
+  userAgent?: string // deprecated, not used
   maxTimeout?: number
   cookies?: SetCookie[],
   headers?: Headers
@@ -68,9 +67,6 @@ type OverridesProps =
   'postData' |
   'headers'
 
-// We always set a Windows User-Agent because ARM builds are detected by Cloudflare
-const DEFAULT_USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36"
-
 async function resolveChallengeWithTimeout(ctx: RequestContext, params: BaseRequestAPICall, page: Page) {
   const maxTimeout = params.maxTimeout || 60000
   const timer = new Timeout();
@@ -164,7 +160,7 @@ async function setupPage(ctx: RequestContext, params: BaseRequestAPICall, browse
   const page = await browser.newPage()
 
   // merge session defaults with params
-  const { method, postData, userAgent, headers, cookies } = params
+  const { method, postData, headers, cookies } = params
 
   let overrideResolvers: OverrideResolvers = {}
 
@@ -178,13 +174,6 @@ async function setupPage(ctx: RequestContext, params: BaseRequestAPICall, browse
     overrideResolvers.postData = request => postData
   }
 
-  if (userAgent) {
-    log.debug(`Using custom UA: ${userAgent}`)
-    await page.setUserAgent(userAgent)
-  } else {
-    await page.setUserAgent(DEFAULT_USER_AGENT)
-  }
-
   if (headers) {
     log.debug(`Adding custom headers: ${JSON.stringify(headers)}`)
     overrideResolvers.headers = request => Object.assign(request.headers(), headers)
@@ -235,7 +224,6 @@ const browserRequest = async (ctx: RequestContext, params: BaseRequestAPICall) =
   const sessionId = params.session || UUIDv1()
   const session = oneTimeSession
     ? await sessions.create(sessionId, {
-      userAgent: params.userAgent,
       oneTimeSession
     })
     : sessions.get(sessionId)
@@ -284,6 +272,9 @@ export const routes: Routes = {
   },
   'request.get': async (ctx, params: BaseRequestAPICall) => {
     params.method = 'GET'
+    if (params.userAgent) {
+      log.warn('Request parameter "userAgent" was removed in FlareSolverr v2.')
+    }
     if (params.postData) {
       return ctx.errorResponse('Cannot use "postBody" when sending a GET request.')
     }
@@ -291,11 +282,12 @@ export const routes: Routes = {
   },
   'request.post': async (ctx, params: BaseRequestAPICall) => {
     params.method = 'POST'
-
+    if (params.userAgent) {
+      log.warn('Request parameter "userAgent" was removed in FlareSolverr v2.')
+    }
     if (!params.postData) {
       return ctx.errorResponse('Must send param "postBody" when sending a POST request.')
     }
-
     await browserRequest(ctx, params)
   },
 }
diff --git a/src/session.ts b/src/session.ts
index 96fdb07..a42d135 100644
--- a/src/session.ts
+++ b/src/session.ts
@@ -9,7 +9,6 @@ const puppeteer = require('puppeteer');
 
 interface SessionPageDefaults {
   headers?: Headers
-  userAgent?: string
 }
 
 export interface SessionsCacheItem {
@@ -24,7 +23,6 @@ interface SessionsCache {
 
 interface SessionCreateOptions {
   oneTimeSession?: boolean
-  userAgent?: string
   cookies?: SetCookie[]
   headers?: Headers,
   maxTimeout?: number
@@ -49,7 +47,7 @@ function prepareBrowserProfile(id: string): string {
 }
 
 export default {
-  create: async (id: string, { cookies, oneTimeSession, userAgent, headers, maxTimeout, proxy }: SessionCreateOptions): Promise<SessionsCacheItem> => {
+  create: async (id: string, { cookies, oneTimeSession, headers, maxTimeout, proxy }: SessionCreateOptions): Promise<SessionsCacheItem> => {
     let args = [
       '--no-sandbox',
       '--disable-setuid-sandbox',
@@ -106,7 +104,6 @@ export default {
       browser: browser,
       userDataDir: puppeteerOptions.userDataDir,
       defaults: removeEmptyFields({
-        userAgent,
         headers,
         maxTimeout
       })