diff --git a/README.md b/README.md
index 48e6229..d37a6ca 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ To install the bindings via [Composer](https://getcomposer.org/), add the follow
 ```json
 {
     "require": {
-        "dropbox/sign": "^1.12.0"
+        "dropbox/sign": "^1.13.0"
     },
     "minimum-stability": "dev"
 }
@@ -64,7 +64,7 @@ Then run `composer install`
 Alternatively, install directly with
 
 ```
-composer require dropbox/sign:^1.12.0
+composer require dropbox/sign:^1.13.0
 ```
 
 ## Getting Started
@@ -447,6 +447,6 @@ apisupport@hellosign.com
 This PHP package is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
 
 - API version: `3.0.0`
-    - Package version: `1.12.0`
+    - Package version: `1.13.0`
     - Generator version: `7.12.0`
 - Build package: `org.openapitools.codegen.languages.PhpClientCodegen`
diff --git a/VERSION b/VERSION
index 0eed1a2..feaae22 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.12.0
+1.13.0
diff --git a/docs/Model/TemplateResponseDocumentFormFieldDropdown.md b/docs/Model/TemplateResponseDocumentFormFieldDropdown.md
index 35cadab..61b05ae 100644
--- a/docs/Model/TemplateResponseDocumentFormFieldDropdown.md
+++ b/docs/Model/TemplateResponseDocumentFormFieldDropdown.md
@@ -8,5 +8,6 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 | `type`<sup>*_required_</sup> | ```string``` |  The type of this form field. See [field types](/api/reference/constants/#field-types).<br><br>* Text Field uses `TemplateResponseDocumentFormFieldText`<br>* Dropdown Field uses `TemplateResponseDocumentFormFieldDropdown`<br>* Hyperlink Field uses `TemplateResponseDocumentFormFieldHyperlink`<br>* Checkbox Field uses `TemplateResponseDocumentFormFieldCheckbox`<br>* Radio Field uses `TemplateResponseDocumentFormFieldRadio`<br>* Signature Field uses `TemplateResponseDocumentFormFieldSignature`<br>* Date Signed Field uses `TemplateResponseDocumentFormFieldDateSigned`<br>* Initials Field uses `TemplateResponseDocumentFormFieldInitials`  |  [default to 'dropdown'] |
 | `group` | ```string``` |  The name of the group this field is in. If this field is not a group, this defaults to `null` except for Radio fields.  |  |
+| `options` | ```string[]``` |  The options available for this dropdown form field.  |  |
 
 [[Back to Model list]](../../README.md#models) [[Back to API list]](../../README.md#endpoints) [[Back to README]](../../README.md)
diff --git a/openapi-config.yaml b/openapi-config.yaml
index 99e8223..a934e6e 100644
--- a/openapi-config.yaml
+++ b/openapi-config.yaml
@@ -1,8 +1,8 @@
 generatorName: php
 additionalProperties:
   packageName: dropbox/sign
-  packageVersion: "^1.12.0"
-  artifactVersion: 1.12.0
+  packageVersion: "^1.13.0"
+  artifactVersion: 1.13.0
   invokerPackage: "Dropbox\\Sign"
   sortModelPropertiesByRequiredFlag: true
   srcBasePath: src
diff --git a/openapi-sdk.yaml b/openapi-sdk.yaml
index ac9e788..576b442 100644
--- a/openapi-sdk.yaml
+++ b/openapi-sdk.yaml
@@ -13104,6 +13104,11 @@ components:
               description: 'The name of the group this field is in. If this field is not a group, this defaults to `null` except for Radio fields.'
               type: string
               nullable: true
+            options:
+              description: 'The options available for this dropdown form field.'
+              type: array
+              items:
+                type: string
           type: object
     TemplateResponseDocumentFormFieldHyperlink:
       description: 'This class extends `TemplateResponseDocumentFormFieldBase`'
diff --git a/src/Configuration.php b/src/Configuration.php
index 7ec1396..1073adc 100644
--- a/src/Configuration.php
+++ b/src/Configuration.php
@@ -97,7 +97,7 @@ class Configuration
      *
      * @var string
      */
-    protected $userAgent = 'OpenAPI-Generator/1.12.0/PHP';
+    protected $userAgent = 'OpenAPI-Generator/1.13.0/PHP';
 
     /**
      * Debug switch (default set to false)
@@ -438,7 +438,7 @@ public static function toDebugReport()
         $report .= '    OS: ' . php_uname() . PHP_EOL;
         $report .= '    PHP Version: ' . PHP_VERSION . PHP_EOL;
         $report .= '    The version of the OpenAPI document: 3.0.0' . PHP_EOL;
-        $report .= '    SDK Package Version: 1.12.0' . PHP_EOL;
+        $report .= '    SDK Package Version: 1.13.0' . PHP_EOL;
         $report .= '    Temp Folder Path: ' . self::getDefaultConfiguration()->getTempFolderPath() . PHP_EOL;
 
         return $report;
diff --git a/src/Model/TemplateResponseDocumentFormFieldDropdown.php b/src/Model/TemplateResponseDocumentFormFieldDropdown.php
index 9760912..f4b334a 100644
--- a/src/Model/TemplateResponseDocumentFormFieldDropdown.php
+++ b/src/Model/TemplateResponseDocumentFormFieldDropdown.php
@@ -59,6 +59,7 @@ class TemplateResponseDocumentFormFieldDropdown extends TemplateResponseDocument
     protected static $openAPITypes = [
         'type' => 'string',
         'group' => 'string',
+        'options' => 'string[]',
     ];
 
     /**
@@ -71,6 +72,7 @@ class TemplateResponseDocumentFormFieldDropdown extends TemplateResponseDocument
     protected static $openAPIFormats = [
         'type' => null,
         'group' => null,
+        'options' => null,
     ];
 
     /**
@@ -81,6 +83,7 @@ class TemplateResponseDocumentFormFieldDropdown extends TemplateResponseDocument
     protected static array $openAPINullables = [
         'type' => false,
         'group' => true,
+        'options' => false,
     ];
 
     /**
@@ -163,6 +166,7 @@ public function isNullableSetToNull(string $property): bool
     protected static $attributeMap = [
         'type' => 'type',
         'group' => 'group',
+        'options' => 'options',
     ];
 
     /**
@@ -173,6 +177,7 @@ public function isNullableSetToNull(string $property): bool
     protected static $setters = [
         'type' => 'setType',
         'group' => 'setGroup',
+        'options' => 'setOptions',
     ];
 
     /**
@@ -183,6 +188,7 @@ public function isNullableSetToNull(string $property): bool
     protected static $getters = [
         'type' => 'getType',
         'group' => 'getGroup',
+        'options' => 'getOptions',
     ];
 
     /**
@@ -238,6 +244,7 @@ public function __construct(?array $data = null)
 
         $this->setIfExists('type', $data ?? [], 'dropdown');
         $this->setIfExists('group', $data ?? [], null);
+        $this->setIfExists('options', $data ?? [], null);
     }
 
     /**
@@ -363,6 +370,33 @@ public function setGroup(?string $group)
         return $this;
     }
 
+    /**
+     * Gets options
+     *
+     * @return string[]|null
+     */
+    public function getOptions()
+    {
+        return $this->container['options'];
+    }
+
+    /**
+     * Sets options
+     *
+     * @param string[]|null $options the options available for this dropdown form field
+     *
+     * @return self
+     */
+    public function setOptions(?array $options)
+    {
+        if (is_null($options)) {
+            throw new InvalidArgumentException('non-nullable options cannot be null');
+        }
+        $this->container['options'] = $options;
+
+        return $this;
+    }
+
     /**
      * Returns true if offset exists. False otherwise.
      *