diff --git a/functionMap.php b/functionMap.php
index 870eb7b..ec1c906 100644
--- a/functionMap.php
+++ b/functionMap.php
@@ -215,6 +215,7 @@
     'wp_unschedule_event' => ['($wp_error is false ? bool : true|\WP_Error)', 'args' => $cronArgsType],
     'wp_unschedule_hook' => ['($wp_error is false ? int<0, max>|false : int<0, max>|\WP_Error)'],
     'wp_unslash' => ['T', '@phpstan-template' => 'T', 'value' => 'T'],
+    'wp_update_category' => ['int<0, max>|false'],
     'wp_update_comment' => ['($wp_error is false ? 0|1|false : 0|1|\WP_Error)'],
     'wp_update_link' => ['int<0, max>|\WP_Error'],
     'wp_update_post' => ['($wp_error is false ? int<0, max> : int<1, max>|\WP_Error)'],
diff --git a/tests/TypeInferenceTest.php b/tests/TypeInferenceTest.php
index d7b8339..1240bf0 100644
--- a/tests/TypeInferenceTest.php
+++ b/tests/TypeInferenceTest.php
@@ -112,6 +112,7 @@ public function dataFileAsserts(): iterable
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_theme.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_translations.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_unique_id.php');
+        yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_update_category.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_update_link.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_widget_factory.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_widget_rss.php');
diff --git a/tests/data/wp_update_category.php b/tests/data/wp_update_category.php
new file mode 100644
index 0000000..a2fc542
--- /dev/null
+++ b/tests/data/wp_update_category.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpStubs\WordPress\Core\Tests;
+
+use function wp_update_category;
+use function PHPStan\Testing\assertType;
+
+assertType('int<0, max>|false', wp_update_category([]));
+assertType('int<0, max>|false', wp_update_category(['cat_ID' => 123]));
+assertType('int<0, max>|false', wp_update_category(Faker::array()));
diff --git a/wordpress-stubs.php b/wordpress-stubs.php
index b5b4a47..2aa963f 100644
--- a/wordpress-stubs.php
+++ b/wordpress-stubs.php
@@ -89582,6 +89582,7 @@ function wp_insert_category($catarr, $wp_error = \false)
      *
      * @param array $catarr The 'cat_ID' value is required. All other keys are optional.
      * @return int|false The ID number of the new or updated Category on success. Zero or FALSE on failure.
+     * @phpstan-return int<0, max>|false
      */
     function wp_update_category($catarr)
     {