diff --git a/README.md b/README.md
index 1598d82..dd2a9bb 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,15 @@ Create API client instance:
 > $dadata = new \Dadata\DadataClient($token, $secret);
 ```
 
+Create API client instance with proxy:
+
+```php
+> $token = "Replace with Dadata API key";
+> $secret = "Replace with Dadata secret key";
+> $proxy = "http://proxy-host/";
+> $dadata = new \Dadata\DadataClient($token, $secret, $proxy);
+```
+
 Then call API methods as specified below.
 
 ## Postal Address
diff --git a/src/CleanClient.php b/src/CleanClient.php
index 33ac03b..285b489 100644
--- a/src/CleanClient.php
+++ b/src/CleanClient.php
@@ -6,9 +6,9 @@ class CleanClient extends ClientBase
 {
     const BASE_URL = "https://cleaner.dadata.ru/api/v1/";
 
-    public function __construct($token, $secret)
+    public function __construct($token, $secret, $proxy = '')
     {
-        parent::__construct(self::BASE_URL, $token, $secret);
+        parent::__construct(self::BASE_URL, $token, $secret, $proxy);
     }
 
     public function clean($name, $value)
diff --git a/src/ClientBase.php b/src/ClientBase.php
index 26ed117..b2f86fe 100644
--- a/src/ClientBase.php
+++ b/src/ClientBase.php
@@ -6,7 +6,7 @@ abstract class ClientBase
 {
     public $client;
 
-    public function __construct($baseUrl, $token, $secret = null)
+    public function __construct($baseUrl, $token, $secret = null, $proxy = '')
     {
         $headers = [
             "Content-Type" => "application/json",
@@ -16,11 +16,15 @@ public function __construct($baseUrl, $token, $secret = null)
         if ($secret) {
             $headers["X-Secret"] = $secret;
         }
-        $this->client = new \GuzzleHttp\Client([
+        $options = [
             "base_uri" => $baseUrl,
             "headers" => $headers,
             "timeout" => Settings::TIMEOUT_SEC
-        ]);
+        ];
+        if ($proxy) {
+            $options['proxy'] = $proxy;
+        }
+        $this->client = new \GuzzleHttp\Client($options);
     }
 
     protected function get($url, $query = [])
diff --git a/src/DadataClient.php b/src/DadataClient.php
index 7b95950..fe5bc54 100644
--- a/src/DadataClient.php
+++ b/src/DadataClient.php
@@ -8,11 +8,11 @@ class DadataClient
     private $profile;
     private $suggestions;
 
-    public function __construct($token, $secret)
+    public function __construct($token, $secret, $proxy = '')
     {
-        $this->cleaner = new CleanClient($token, $secret);
-        $this->profile = new ProfileClient($token, $secret);
-        $this->suggestions = new SuggestClient($token);
+        $this->cleaner = new CleanClient($token, $secret, $proxy = '');
+        $this->profile = new ProfileClient($token, $secret, $proxy = '');
+        $this->suggestions = new SuggestClient($token, $proxy = '');
     }
 
     public function clean($name, $value)
diff --git a/src/ProfileClient.php b/src/ProfileClient.php
index c9ffae9..c61ff48 100644
--- a/src/ProfileClient.php
+++ b/src/ProfileClient.php
@@ -8,9 +8,9 @@ class ProfileClient extends ClientBase
 {
     const BASE_URL = "https://dadata.ru/api/v2/";
 
-    public function __construct($token, $secret)
+    public function __construct($token, $secret, $proxy = '')
     {
-        parent::__construct(self::BASE_URL, $token, $secret);
+        parent::__construct(self::BASE_URL, $token, $secret, $proxy = '');
     }
 
     public function getBalance()
diff --git a/src/SuggestClient.php b/src/SuggestClient.php
index 7140315..fecab8c 100644
--- a/src/SuggestClient.php
+++ b/src/SuggestClient.php
@@ -6,9 +6,9 @@ class SuggestClient extends ClientBase
 {
     const BASE_URL = "https://suggestions.dadata.ru/suggestions/api/4_1/rs/";
 
-    public function __construct($token)
+    public function __construct($token, $proxy = '')
     {
-        parent::__construct(self::BASE_URL, $token, null);
+        parent::__construct(self::BASE_URL, $token, null, $proxy);
     }
 
     public function findAffiliated($query, $count = Settings::SUGGESTION_COUNT, $kwargs = [])