diff --git a/src/component/SeleniumBrowser.js b/src/component/SeleniumBrowser.js
index 5719021..971bbd8 100644
--- a/src/component/SeleniumBrowser.js
+++ b/src/component/SeleniumBrowser.js
@@ -75,6 +75,7 @@ class SeleniumBrowser {
                         .then(body => body.getAttribute('innerHTML'))
                     let htmlPromise = this.isCaptchaPage(html) ? this.resolveCaptcha(driver) : this.getHtml(driver, html, params)
                     html = await htmlPromise
+                    this.pool.release(driver)
                     return html
                 })
         } else {