diff --git a/src/component/SeleniumBrowser.js b/src/component/SeleniumBrowser.js
index 5694e7e..4139096 100644
--- a/src/component/SeleniumBrowser.js
+++ b/src/component/SeleniumBrowser.js
@@ -142,7 +142,11 @@ class SeleniumBrowser {
                 return res
             })
             .then(res => {
-                return driver.executeScript('captchaCallback("' + res.request + '")').then(async () => await this.sleep(1000 * 5))
+                return driver.executeScript('captchaCallback("' + res.request + '")').then(() => this.sleep(1000 * 5))
+            }).finally(() => {
+                if(this.pool.isBorrowedResource(driver)) {
+                    this.pool.release(driver)
+                }
             })
     }