[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Browser](./puppeteer.protocol.browser.md) > [GetVersionResponse](./puppeteer.protocol.browser.getversionresponse.md) > [protocolVersion](./puppeteer.protocol.browser.getversionresponse.protocolversion.md) ## Protocol.Browser.GetVersionResponse.protocolVersion property Protocol version. Signature: ```typescript protocolVersion: string; ```