diff --git a/.github/workflows/generate.yml b/.github/workflows/generate.yml
new file mode 100644
index 0000000..44ac9a9
--- /dev/null
+++ b/.github/workflows/generate.yml
@@ -0,0 +1,37 @@
+name: Generate stubs
+
+on: workflow_dispatch
+
+env:
+  php-version: '7.4'
+
+jobs:
+  generate-stubs:
+    name: Generate stubs
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Install PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        coverage: none
+        ini-file: development
+        php-version: ${{ env.php-version }}
+
+    - name: Install dependencies
+      run: composer install --no-interaction --no-progress --prefer-dist
+
+    - name: Generate stubs
+      run: |
+        ./generate.sh # Generate stubs
+
+    - name: Commit file
+      run: |
+          git config --local user.name "GitHub Actions"
+          git config --local user.email "no-reply@github.com"
+          git add wordpress-stubs.php
+          git commit -m "Update WordPress stubs" || exit 0
+          git push origin ${{ github.ref_name }}
diff --git a/functionMap.php b/functionMap.php
index 384a6fa..9fa6e10 100644
--- a/functionMap.php
+++ b/functionMap.php
@@ -51,6 +51,7 @@
     'WP_Http::head' => [$httpReturnType],
     'WP_Http::post' => [$httpReturnType],
     'WP_Http::request' => [$httpReturnType],
+    'wp_list_bookmarks' => ['($args is array{echo: false|0} ? string : void)'],
     'wp_list_pages' => ['($args is array{echo: false} ? string : void)'],
     'WP_List_Table::set_pagination_args' => ['void', 'args' => 'array{total_items?: int, total_pages?: int, per_page?: int}'],
     'wp_next_scheduled' => [null, 'args' => $cronArgsType],
diff --git a/tests/TypeInferenceTest.php b/tests/TypeInferenceTest.php
index 68c9e2f..34c271f 100644
--- a/tests/TypeInferenceTest.php
+++ b/tests/TypeInferenceTest.php
@@ -35,6 +35,7 @@ public function dataFileAsserts(): iterable
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_dropdown_languages.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_error_parameter.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_get_archives.php');
+        yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_list_bookmarks.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_list_pages.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_rest_request.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/wp_theme.php');
diff --git a/tests/data/wp_list_bookmarks.php b/tests/data/wp_list_bookmarks.php
new file mode 100644
index 0000000..ba51576
--- /dev/null
+++ b/tests/data/wp_list_bookmarks.php
@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * Note:
+ * Starting from PHPStan 1.10.49, void types, including void in unions, are
+ * transformed into null.
+ *
+ * @link https://github.com/phpstan/phpstan-src/pull/2778
+ */
+
+declare(strict_types=1);
+
+namespace PhpStubs\WordPress\Core\Tests;
+
+use function wp_list_bookmarks;
+use function PHPStan\Testing\assertType;
+
+// Default value of true
+assertType('null', wp_list_bookmarks());
+
+// Explicit value of true|1
+assertType('null', wp_list_bookmarks(['echo' => true, 'key' => 'value']));
+assertType('null', wp_list_bookmarks(['echo' => 1, 'key' => 'value']));
+
+// Explicit value of false|0
+assertType('string', wp_list_bookmarks(['echo' => false, 'key' => 'value']));
+assertType('string', wp_list_bookmarks(['echo' => 0, 'key' => 'value']));
+
+// Unknown value
+assertType('string|null', wp_list_bookmarks(['echo' => (bool)$GET['echo'], 'key' => 'value']));
+assertType('string|null', wp_list_bookmarks(['echo' => (int)$GET['echo'], 'key' => 'value']));
diff --git a/wordpress-stubs.php b/wordpress-stubs.php
index ae00d8d..e4b594e 100644
--- a/wordpress-stubs.php
+++ b/wordpress-stubs.php
@@ -100931,6 +100931,7 @@ function _walk_bookmarks($bookmarks, $args = '')
      *   category_orderby?: string,
      *   category_order?: string,
      * } $args
+     * @phpstan-return ($args is array{echo: false|0} ? string : void)
      */
     function wp_list_bookmarks($args = '')
     {