diff --git a/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php b/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php
index bfc7928..bc3c961 100644
--- a/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php
+++ b/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php
@@ -81,11 +81,8 @@ class Mailchimp {
    *
    * @param string $api_user
    *   The MailChimp API username.
-   *
-   * @param int $timeout
-   *   Maximum request time in seconds.
    */
-  public function __construct($api_key, $api_user = 'apikey', $timeout = 10) {
+  public function __construct($api_key, $api_user = 'apikey') {
     $this->api_key = $api_key;
     $this->api_user = $api_user;
 
@@ -93,9 +90,9 @@ public function __construct($api_key, $api_user = 'apikey', $timeout = 10) {
 
     $this->endpoint = str_replace(Mailchimp::DEFAULT_DATA_CENTER, $dc, $this->endpoint);
 
-    $this->client = new Client([
-      'timeout' => $timeout,
-    ]);
+    // Use the Drupal http client service that can be configured
+    // from the website settings.php file for timeout and proxies etc.
+    $this->client = \Drupal::httpClient();
   }
 
   /**
diff --git a/modules/contrib/mailchimp/mailchimp.module b/modules/contrib/mailchimp/mailchimp.module
index ef031cb..d91a7ec 100644
--- a/modules/contrib/mailchimp/mailchimp.module
+++ b/modules/contrib/mailchimp/mailchimp.module
@@ -68,10 +68,7 @@ function mailchimp_get_api_object($classname = 'Mailchimp') {
     return NULL;
   }
 
-  // Hack to reduce the timeout from 60 to 3 seconds.
-  $timeout = 3;
-
-  $mailchimp = new $classname($api_key, 'apikey', $timeout);
+  $mailchimp = new $classname($api_key, 'apikey');
 
   return $mailchimp;
 }
diff --git a/patches/mailchimp-default-client.patch b/patches/mailchimp-default-client.patch
index f4bb993..e69de29 100644
--- a/patches/mailchimp-default-client.patch
+++ b/patches/mailchimp-default-client.patch
@@ -1,64 +0,0 @@
-diff --git a/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php b/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php
-index bfc7928..bc3c961 100644
---- a/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php
-+++ b/modules/contrib/mailchimp/lib/mailchimp-api-php/src/Mailchimp.php
-@@ -81,11 +81,8 @@ class Mailchimp {
-    *
-    * @param string $api_user
-    *   The MailChimp API username.
--   *
--   * @param int $timeout
--   *   Maximum request time in seconds.
-    */
--  public function __construct($api_key, $api_user = 'apikey', $timeout = 10) {
-+  public function __construct($api_key, $api_user = 'apikey') {
-     $this->api_key = $api_key;
-     $this->api_user = $api_user;
- 
-@@ -93,9 +90,9 @@ public function __construct($api_key, $api_user = 'apikey', $timeout = 10) {
- 
-     $this->endpoint = str_replace(Mailchimp::DEFAULT_DATA_CENTER, $dc, $this->endpoint);
- 
--    $this->client = new Client([
--      'timeout' => $timeout,
--    ]);
-+    // Use the Drupal http client service that can be configured
-+    // from the website settings.php file for timeout and proxies etc.
-+    $this->client = \Drupal::httpClient();
-   }
- 
-   /**
-diff --git a/modules/contrib/mailchimp/mailchimp.module b/modules/contrib/mailchimp/mailchimp.module
-index ebc7867..d91a7ec 100644
---- a/modules/contrib/mailchimp/mailchimp.module
-+++ b/modules/contrib/mailchimp/mailchimp.module
-@@ -68,9 +68,7 @@ function mailchimp_get_api_object($classname = 'Mailchimp') {
-     return NULL;
-   }
- 
--  $timeout = 60;
--
--  $mailchimp = new $classname($api_key, 'apikey', $timeout);
-+  $mailchimp = new $classname($api_key, 'apikey');
- 
-   return $mailchimp;
- }
-diff --git a/patches/mailchimp-reduce-timeout.patch b/patches/mailchimp-reduce-timeout.patch
-index 9846cd4..e69de29 100644
---- a/patches/mailchimp-reduce-timeout.patch
-+++ b/patches/mailchimp-reduce-timeout.patch
-@@ -1,14 +0,0 @@
--diff --git a/modules/contrib/mailchimp/mailchimp.module b/modules/contrib/mailchimp/mailchimp.module
--index ebc7867..ef031cb 100644
----- a/modules/contrib/mailchimp/mailchimp.module
--+++ b/modules/contrib/mailchimp/mailchimp.module
--@@ -68,7 +68,8 @@ function mailchimp_get_api_object($classname = 'Mailchimp') {
--     return NULL;
--   }
-- 
---  $timeout = 60;
--+  // Hack to reduce the timeout from 60 to 3 seconds.
--+  $timeout = 3;
-- 
--   $mailchimp = new $classname($api_key, 'apikey', $timeout);
--