diff --git a/src/Exceptions/BadRequestException.php b/src/Exceptions/BadRequestException.php
index e03faa1..a8d47b1 100644
--- a/src/Exceptions/BadRequestException.php
+++ b/src/Exceptions/BadRequestException.php
@@ -4,7 +4,12 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-class BadRequestException extends HttpException
+use Storipress\WordPress\Objects\ErrorException;
+
+class BadRequestException extends WordPressException
 {
-    //
+    public function __construct(ErrorException $error)
+    {
+        parent::__construct($error, 400);
+    }
 }
diff --git a/src/Exceptions/Exception.php b/src/Exceptions/CannotCreateException.php
similarity index 52%
rename from src/Exceptions/Exception.php
rename to src/Exceptions/CannotCreateException.php
index d2e69af..3f1404c 100644
--- a/src/Exceptions/Exception.php
+++ b/src/Exceptions/CannotCreateException.php
@@ -4,9 +4,7 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-use Exception as BaseException;
-
-abstract class Exception extends BaseException
+class CannotCreateException extends WordPressException
 {
     //
 }
diff --git a/src/Exceptions/CannotUpdateException.php b/src/Exceptions/CannotUpdateException.php
new file mode 100644
index 0000000..3385bc9
--- /dev/null
+++ b/src/Exceptions/CannotUpdateException.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Storipress\WordPress\Exceptions;
+
+class CannotUpdateException extends WordPressException
+{
+    //
+}
diff --git a/src/Exceptions/DuplicateTermSlugException.php b/src/Exceptions/DuplicateTermSlugException.php
new file mode 100644
index 0000000..4c22cf9
--- /dev/null
+++ b/src/Exceptions/DuplicateTermSlugException.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Storipress\WordPress\Exceptions;
+
+class DuplicateTermSlugException extends WordPressException
+{
+    //
+}
diff --git a/src/Exceptions/ForbiddenException.php b/src/Exceptions/ForbiddenException.php
index ba87335..960f970 100644
--- a/src/Exceptions/ForbiddenException.php
+++ b/src/Exceptions/ForbiddenException.php
@@ -4,7 +4,12 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-class ForbiddenException extends HttpException
+use Storipress\WordPress\Objects\ErrorException;
+
+class ForbiddenException extends WordPressException
 {
-    //
+    public function __construct(ErrorException $error)
+    {
+        parent::__construct($error, 403);
+    }
 }
diff --git a/src/Exceptions/NotFoundException.php b/src/Exceptions/NotFoundException.php
index 9b9a6ef..7208e96 100644
--- a/src/Exceptions/NotFoundException.php
+++ b/src/Exceptions/NotFoundException.php
@@ -4,7 +4,12 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-class NotFoundException extends HttpException
+use Storipress\WordPress\Objects\ErrorException;
+
+class NotFoundException extends WordPressException
 {
-    //
+    public function __construct(ErrorException $error)
+    {
+        parent::__construct($error, 404);
+    }
 }
diff --git a/src/Exceptions/Rest/CannotCreateException.php b/src/Exceptions/Rest/CannotCreateException.php
deleted file mode 100644
index 300150c..0000000
--- a/src/Exceptions/Rest/CannotCreateException.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Storipress\WordPress\Exceptions\Rest;
-
-class CannotCreateException extends HttpException
-{
-    //
-}
diff --git a/src/Exceptions/Rest/CannotUpdateException.php b/src/Exceptions/Rest/CannotUpdateException.php
deleted file mode 100644
index d3f7db7..0000000
--- a/src/Exceptions/Rest/CannotUpdateException.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Storipress\WordPress\Exceptions\Rest;
-
-class CannotUpdateException extends HttpException
-{
-    //
-}
diff --git a/src/Exceptions/Rest/DuplicateTermSlugException.php b/src/Exceptions/Rest/DuplicateTermSlugException.php
deleted file mode 100644
index 5a69a03..0000000
--- a/src/Exceptions/Rest/DuplicateTermSlugException.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Storipress\WordPress\Exceptions\Rest;
-
-class DuplicateTermSlugException extends HttpException
-{
-    //
-}
diff --git a/src/Exceptions/Rest/HttpException.php b/src/Exceptions/Rest/HttpException.php
deleted file mode 100644
index 5dc8157..0000000
--- a/src/Exceptions/Rest/HttpException.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Storipress\WordPress\Exceptions\Rest;
-
-use Storipress\WordPress\Exceptions\HttpException as BaseHttpException;
-use Storipress\WordPress\Objects\ErrorException;
-use Throwable;
-
-abstract class HttpException extends BaseHttpException
-{
-    public string $raw_message;
-
-    public string $message_code;
-
-    public function __construct(ErrorException $error, int $code = 0, ?Throwable $previous = null)
-    {
-        $this->raw_message = $error->raw_message;
-
-        $this->message_code = $error->code;
-
-        parent::__construct($error->message, $code, $previous);
-    }
-
-    public function getRawMessage(): string
-    {
-        return $this->raw_message;
-    }
-
-    public function getMessageCode(): string
-    {
-        return $this->message_code;
-    }
-}
diff --git a/src/Exceptions/Rest/TermExistsException.php b/src/Exceptions/Rest/TermExistsException.php
deleted file mode 100644
index 6e3488e..0000000
--- a/src/Exceptions/Rest/TermExistsException.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Storipress\WordPress\Exceptions\Rest;
-
-use Storipress\WordPress\Objects\ErrorException;
-use Throwable;
-
-class TermExistsException extends HttpException
-{
-    /**
-     * Duplicate term id
-     */
-    public ?int $term_id;
-
-    public function __construct(ErrorException $error, int $code = 0, ?Throwable $previous = null)
-    {
-        $this->term_id = $error->data['term_id'] ?? null;
-
-        parent::__construct($error, $code, $previous);
-    }
-
-    public function getTermId(): mixed
-    {
-        return $this->term_id;
-    }
-}
diff --git a/src/Exceptions/Rest/UnknownException.php b/src/Exceptions/Rest/UnknownException.php
deleted file mode 100644
index f5b0898..0000000
--- a/src/Exceptions/Rest/UnknownException.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Storipress\WordPress\Exceptions\Rest;
-
-class UnknownException extends HttpException
-{
-    //
-}
diff --git a/src/Exceptions/HttpUnknownError.php b/src/Exceptions/TermExistsException.php
similarity index 62%
rename from src/Exceptions/HttpUnknownError.php
rename to src/Exceptions/TermExistsException.php
index 493a71a..ff2ec2b 100644
--- a/src/Exceptions/HttpUnknownError.php
+++ b/src/Exceptions/TermExistsException.php
@@ -4,7 +4,7 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-class HttpUnknownError extends HttpException
+class TermExistsException extends WordPressException
 {
     //
 }
diff --git a/src/Exceptions/UnauthorizedException.php b/src/Exceptions/UnauthorizedException.php
index 02a666b..1772dd9 100644
--- a/src/Exceptions/UnauthorizedException.php
+++ b/src/Exceptions/UnauthorizedException.php
@@ -4,7 +4,12 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-class UnauthorizedException extends HttpException
+use Storipress\WordPress\Objects\ErrorException;
+
+class UnauthorizedException extends WordPressException
 {
-    //
+    public function __construct(ErrorException $error)
+    {
+        parent::__construct($error, 401);
+    }
 }
diff --git a/src/Exceptions/UnexpectedValueException.php b/src/Exceptions/UnexpectedValueException.php
index 3fa3f4b..b5aa9f5 100644
--- a/src/Exceptions/UnexpectedValueException.php
+++ b/src/Exceptions/UnexpectedValueException.php
@@ -4,7 +4,12 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-class UnexpectedValueException extends Exception
+use Storipress\WordPress\Objects\ErrorException;
+
+class UnexpectedValueException extends WordPressException
 {
-    //
+    public function __construct(ErrorException $error)
+    {
+        parent::__construct($error, 500);
+    }
 }
diff --git a/src/Exceptions/HttpException.php b/src/Exceptions/UnknownException.php
similarity index 63%
rename from src/Exceptions/HttpException.php
rename to src/Exceptions/UnknownException.php
index eb9d3ff..2a5c184 100644
--- a/src/Exceptions/HttpException.php
+++ b/src/Exceptions/UnknownException.php
@@ -4,7 +4,7 @@
 
 namespace Storipress\WordPress\Exceptions;
 
-abstract class HttpException extends Exception
+class UnknownException extends WordPressException
 {
     //
 }
diff --git a/src/Exceptions/WordPressException.php b/src/Exceptions/WordPressException.php
new file mode 100644
index 0000000..f6f835a
--- /dev/null
+++ b/src/Exceptions/WordPressException.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Storipress\WordPress\Exceptions;
+
+use Exception as BaseException;
+use Storipress\WordPress\Objects\ErrorException;
+
+abstract class WordPressException extends BaseException
+{
+    /**
+     * Duplicate term id
+     */
+    public ?int $term_id;
+
+    public function __construct(public ErrorException $error, int $code)
+    {
+        $this->term_id = $error->data->term_id ?? null;
+
+        parent::__construct($error->message, $code);
+    }
+
+    public function getTermId(): ?int
+    {
+        return $this->term_id;
+    }
+}
diff --git a/src/Objects/ErrorException.php b/src/Objects/ErrorException.php
index fc2958c..d0c9be8 100644
--- a/src/Objects/ErrorException.php
+++ b/src/Objects/ErrorException.php
@@ -12,7 +12,5 @@ class ErrorException extends WordPressObject
 
     public string $message;
 
-    public string $raw_message;
-
     public stdClass $data;
 }
diff --git a/src/Requests/Category.php b/src/Requests/Category.php
index 834b48b..87bf3b4 100644
--- a/src/Requests/Category.php
+++ b/src/Requests/Category.php
@@ -4,8 +4,7 @@
 
 namespace Storipress\WordPress\Requests;
 
-use Storipress\WordPress\Exceptions\HttpException;
-use Storipress\WordPress\Exceptions\UnexpectedValueException;
+use Storipress\WordPress\Exceptions\WordPressException;
 use Storipress\WordPress\Objects\Category as CategoryObject;
 
 class Category extends Request
@@ -15,15 +14,14 @@ class Category extends Request
      *
      * @return array<int, CategoryObject>
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function list(): array
     {
         $data = $this->request('get', '/categories');
 
         if (!is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return array_map(
@@ -37,15 +35,14 @@ public function list(): array
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function create(array $arguments): CategoryObject
     {
         $data = $this->request('post', '/categories', $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return CategoryObject::from($data);
@@ -54,8 +51,7 @@ public function create(array $arguments): CategoryObject
     /**
      * https://developer.wordpress.org/rest-api/reference/categories/#retrieve-a-category
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function retrieve(int $categoryId, string $context = 'view'): CategoryObject
     {
@@ -66,7 +62,7 @@ public function retrieve(int $categoryId, string $context = 'view'): CategoryObj
         ]);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return CategoryObject::from($data);
@@ -77,8 +73,7 @@ public function retrieve(int $categoryId, string $context = 'view'): CategoryObj
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function update(int $categoryId, array $arguments): CategoryObject
     {
@@ -87,7 +82,7 @@ public function update(int $categoryId, array $arguments): CategoryObject
         $data = $this->request('patch', $uri, $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return CategoryObject::from($data);
@@ -96,8 +91,7 @@ public function update(int $categoryId, array $arguments): CategoryObject
     /**
      * https://developer.wordpress.org/rest-api/reference/categories/#delete-a-category
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function delete(int $categoryId): bool
     {
diff --git a/src/Requests/GeneralRequest.php b/src/Requests/GeneralRequest.php
index c84a2fe..14ebc19 100644
--- a/src/Requests/GeneralRequest.php
+++ b/src/Requests/GeneralRequest.php
@@ -5,6 +5,7 @@
 namespace Storipress\WordPress\Requests;
 
 use stdClass;
+use Storipress\WordPress\Exceptions\WordPressException;
 
 class GeneralRequest extends Request
 {
@@ -13,8 +14,7 @@ class GeneralRequest extends Request
      * @param  array<mixed>  $arguments
      * @return stdClass|array<int, stdClass>
      *
-     * @throws \Storipress\WordPress\Exceptions\HttpException
-     * @throws \Storipress\WordPress\Exceptions\UnexpectedValueException
+     * @throws WordPressException
      */
     public function get(string $path, array $arguments): stdClass|array
     {
@@ -26,8 +26,7 @@ public function get(string $path, array $arguments): stdClass|array
      * @param  array<mixed>  $arguments
      * @return stdClass|array<int, stdClass>
      *
-     * @throws \Storipress\WordPress\Exceptions\HttpException
-     * @throws \Storipress\WordPress\Exceptions\UnexpectedValueException
+     * @throws WordPressException
      */
     public function post(string $path, array $arguments): stdClass|array
     {
@@ -39,8 +38,7 @@ public function post(string $path, array $arguments): stdClass|array
      * @param  array<mixed>  $arguments
      * @return stdClass|array<int, stdClass>
      *
-     * @throws \Storipress\WordPress\Exceptions\HttpException
-     * @throws \Storipress\WordPress\Exceptions\UnexpectedValueException
+     * @throws WordPressException
      */
     public function patch(string $path, array $arguments): stdClass|array
     {
@@ -51,8 +49,7 @@ public function patch(string $path, array $arguments): stdClass|array
      * @param  non-empty-string  $path
      * @param  array<mixed>  $arguments
      *
-     * @throws \Storipress\WordPress\Exceptions\HttpException
-     * @throws \Storipress\WordPress\Exceptions\UnexpectedValueException
+     * @throws WordPressException
      */
     public function delete(string $path, array $arguments): bool
     {
diff --git a/src/Requests/Post.php b/src/Requests/Post.php
index a2f7209..becd9bf 100644
--- a/src/Requests/Post.php
+++ b/src/Requests/Post.php
@@ -4,8 +4,7 @@
 
 namespace Storipress\WordPress\Requests;
 
-use Storipress\WordPress\Exceptions\HttpException;
-use Storipress\WordPress\Exceptions\UnexpectedValueException;
+use Storipress\WordPress\Exceptions\WordPressException;
 use Storipress\WordPress\Objects\Post as PostObject;
 
 class Post extends Request
@@ -15,15 +14,14 @@ class Post extends Request
      *
      * @return array<int, PostObject>
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function list(): array
     {
         $data = $this->request('get', '/posts');
 
         if (!is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return array_map(
@@ -37,15 +35,14 @@ public function list(): array
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function create(array $arguments): PostObject
     {
         $data = $this->request('post', '/posts', $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return PostObject::from($data);
@@ -54,8 +51,7 @@ public function create(array $arguments): PostObject
     /**
      * https://developer.wordpress.org/rest-api/reference/posts/#retrieve-a-post
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function retrieve(int $postId, string $context = 'view'): PostObject
     {
@@ -66,7 +62,7 @@ public function retrieve(int $postId, string $context = 'view'): PostObject
         ]);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return PostObject::from($data);
@@ -77,8 +73,7 @@ public function retrieve(int $postId, string $context = 'view'): PostObject
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function update(int $postId, array $arguments): PostObject
     {
@@ -87,7 +82,7 @@ public function update(int $postId, array $arguments): PostObject
         $data = $this->request('patch', $uri, $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return PostObject::from($data);
@@ -96,8 +91,7 @@ public function update(int $postId, array $arguments): PostObject
     /**
      * https://developer.wordpress.org/rest-api/reference/posts/#delete-a-post
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function delete(int $postId, bool $force = false): bool
     {
diff --git a/src/Requests/Request.php b/src/Requests/Request.php
index 0489a49..0619b63 100644
--- a/src/Requests/Request.php
+++ b/src/Requests/Request.php
@@ -9,17 +9,16 @@
 use JsonSchema\Validator;
 use stdClass;
 use Storipress\WordPress\Exceptions\BadRequestException;
+use Storipress\WordPress\Exceptions\CannotCreateException;
+use Storipress\WordPress\Exceptions\CannotUpdateException;
+use Storipress\WordPress\Exceptions\DuplicateTermSlugException;
 use Storipress\WordPress\Exceptions\ForbiddenException;
-use Storipress\WordPress\Exceptions\HttpException;
-use Storipress\WordPress\Exceptions\HttpUnknownError;
 use Storipress\WordPress\Exceptions\NotFoundException;
-use Storipress\WordPress\Exceptions\Rest\CannotCreateException;
-use Storipress\WordPress\Exceptions\Rest\CannotUpdateException;
-use Storipress\WordPress\Exceptions\Rest\DuplicateTermSlugException;
-use Storipress\WordPress\Exceptions\Rest\TermExistsException;
-use Storipress\WordPress\Exceptions\Rest\UnknownException;
+use Storipress\WordPress\Exceptions\TermExistsException;
 use Storipress\WordPress\Exceptions\UnauthorizedException;
 use Storipress\WordPress\Exceptions\UnexpectedValueException;
+use Storipress\WordPress\Exceptions\UnknownException;
+use Storipress\WordPress\Exceptions\WordPressException;
 use Storipress\WordPress\Objects\ErrorException;
 use Storipress\WordPress\WordPress;
 
@@ -39,8 +38,7 @@ public function __construct(
      * @param  array<mixed>  $options
      * @return ($method is 'delete' ? bool : stdClass|array<int, stdClass>)
      *
-     * @throws UnexpectedValueException
-     * @throws HttpException
+     * @throws UnexpectedValueException|WordPressException
      */
     protected function request(
         string $method,
@@ -59,14 +57,14 @@ protected function request(
         $response = $http->{$method}($this->getUrl($path), $options);
 
         if (!($response instanceof Response)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response value.');
         }
 
         $payload = $response->object();
 
         // @phpstan-ignore-next-line
         if (!($payload instanceof stdClass) && !is_array($payload)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         if (!$response->successful()) {
@@ -74,7 +72,6 @@ protected function request(
                 $payload,
                 $response->body(),
                 $response->status(),
-                $response->headers(),
             );
         }
 
@@ -95,11 +92,9 @@ public function getUrl(string $path): string
     }
 
     /**
-     * @param  array<string, array<int, string>>  $headers
-     *
-     * @throws HttpException
+     * @throws WordPressException
      */
-    protected function error(stdClass $payload, string $message, int $status, array $headers): void
+    protected function error(stdClass $payload, string $message, int $status): void
     {
         if ($this->validate($payload)) {
             $error = ErrorException::from($payload);
@@ -113,12 +108,18 @@ protected function error(stdClass $payload, string $message, int $status, array
             };
         }
 
+        $error = ErrorException::from((object) [
+            'code' => (string) $status,
+            'message' => $message,
+            'data' => (object) [],
+        ]);
+
         throw match ($status) {
-            400 => new BadRequestException($message, $status),
-            401 => new UnauthorizedException($message, $status),
-            403 => new ForbiddenException($message, $status),
-            404 => new NotFoundException($message, $status),
-            default => new HttpUnknownError($message, $status),
+            400 => new BadRequestException($error),
+            401 => new UnauthorizedException($error),
+            403 => new ForbiddenException($error),
+            404 => new NotFoundException($error),
+            default => new UnknownException($error, $status),
         };
     }
 
@@ -140,4 +141,13 @@ protected function validate(stdClass $data): bool
 
         return $validator->isValid();
     }
+
+    protected function unexpectedValueException(string $message): UnexpectedValueException
+    {
+        return new UnexpectedValueException(ErrorException::from((object) [
+            'message' => $message,
+            'code' => '500',
+            'data' => (object) [],
+        ]));
+    }
 }
diff --git a/src/Requests/Tag.php b/src/Requests/Tag.php
index c6e9870..265cf22 100644
--- a/src/Requests/Tag.php
+++ b/src/Requests/Tag.php
@@ -4,8 +4,7 @@
 
 namespace Storipress\WordPress\Requests;
 
-use Storipress\WordPress\Exceptions\HttpException;
-use Storipress\WordPress\Exceptions\UnexpectedValueException;
+use Storipress\WordPress\Exceptions\WordPressException;
 use Storipress\WordPress\Objects\Tag as TagObject;
 
 class Tag extends Request
@@ -15,15 +14,14 @@ class Tag extends Request
      *
      * @return array<int, TagObject>
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function list(): array
     {
         $data = $this->request('get', '/tags');
 
         if (!is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return array_map(
@@ -37,15 +35,14 @@ public function list(): array
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function create(array $arguments): TagObject
     {
         $data = $this->request('post', '/tags', $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return TagObject::from($data);
@@ -54,8 +51,7 @@ public function create(array $arguments): TagObject
     /**
      * https://developer.wordpress.org/rest-api/reference/tags/#retrieve-a-tag
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function retrieve(int $tagId, string $context = 'view'): TagObject
     {
@@ -66,7 +62,7 @@ public function retrieve(int $tagId, string $context = 'view'): TagObject
         ]);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return TagObject::from($data);
@@ -77,8 +73,7 @@ public function retrieve(int $tagId, string $context = 'view'): TagObject
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function update(int $tagId, array $arguments): TagObject
     {
@@ -87,7 +82,7 @@ public function update(int $tagId, array $arguments): TagObject
         $data = $this->request('patch', $uri, $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return TagObject::from($data);
@@ -96,8 +91,7 @@ public function update(int $tagId, array $arguments): TagObject
     /**
      * https://developer.wordpress.org/rest-api/reference/tags/#delete-a-tag
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function delete(int $tagId): bool
     {
diff --git a/src/Requests/User.php b/src/Requests/User.php
index df27873..a60aceb 100644
--- a/src/Requests/User.php
+++ b/src/Requests/User.php
@@ -4,8 +4,7 @@
 
 namespace Storipress\WordPress\Requests;
 
-use Storipress\WordPress\Exceptions\HttpException;
-use Storipress\WordPress\Exceptions\UnexpectedValueException;
+use Storipress\WordPress\Exceptions\WordPressException;
 use Storipress\WordPress\Objects\User as UserObject;
 
 class User extends Request
@@ -15,15 +14,14 @@ class User extends Request
      *
      * @return array<int, UserObject>
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function list(): array
     {
         $data = $this->request('get', '/users');
 
         if (!is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return array_map(
@@ -37,15 +35,14 @@ public function list(): array
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function create(array $arguments): UserObject
     {
         $data = $this->request('post', '/users', $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return UserObject::from($data);
@@ -54,8 +51,7 @@ public function create(array $arguments): UserObject
     /**
      * https://developer.wordpress.org/rest-api/reference/users/#retrieve-a-user
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function retrieve(int $userId, string $context = 'view'): UserObject
     {
@@ -66,7 +62,7 @@ public function retrieve(int $userId, string $context = 'view'): UserObject
         ]);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return UserObject::from($data);
@@ -77,8 +73,7 @@ public function retrieve(int $userId, string $context = 'view'): UserObject
      *
      * @param  array<string, mixed>  $arguments
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function update(int $userId, array $arguments): UserObject
     {
@@ -87,7 +82,7 @@ public function update(int $userId, array $arguments): UserObject
         $data = $this->request('patch', $uri, $arguments);
 
         if (is_array($data)) {
-            throw new UnexpectedValueException();
+            throw $this->unexpectedValueException('Unexpected response format.');
         }
 
         return UserObject::from($data);
@@ -96,8 +91,7 @@ public function update(int $userId, array $arguments): UserObject
     /**
      * https://developer.wordpress.org/rest-api/reference/users/#delete-a-user
      *
-     * @throws HttpException
-     * @throws UnexpectedValueException
+     * @throws WordPressException
      */
     public function delete(int $userId, int $reassign): bool
     {
diff --git a/tests/ArchitectureTest.php b/tests/ArchitectureTest.php
index e01127c..8138af6 100644
--- a/tests/ArchitectureTest.php
+++ b/tests/ArchitectureTest.php
@@ -1,6 +1,6 @@
 <?php
 
-use Storipress\WordPress\Exceptions\Exception;
+use Storipress\WordPress\Exceptions\WordPressException;
 use Storipress\WordPress\Objects\WordPressObject;
 use Storipress\WordPress\Requests\Request;
 
@@ -31,4 +31,4 @@
 test('All Exception classes should extend "Exception".')
     ->expect('Storipress\WordPress\Exceptions')
     ->classes()
-    ->toExtend(Exception::class);
+    ->toExtend(WordPressException::class);