diff --git a/composer.json b/composer.json
index b547cfc..80ab5ae 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "php": "~8.1.0 || ~8.2.0 || ~8.3.0",
         "ext-dom": "*",
         "goetas-webservices/xsd-reader": "^0.4.1",
-        "php-soap/engine": "^2.6",
+        "php-soap/engine": "^2.7",
         "php-soap/wsdl": "^1.4",
         "veewee/xml": "^2.6 || ^3.0",
         "azjezz/psl": "^2.4",
diff --git a/tests/PhpCompatibility/schema1011.phpt b/tests/PhpCompatibility/schema1011.phpt
new file mode 100644
index 0000000..355dcca
--- /dev/null
+++ b/tests/PhpCompatibility/schema1011.phpt
@@ -0,0 +1,21 @@
+--TEST--
+SOAP XML Schema 1001: Empty enumarable
+--FILE--
+<?php
+include __DIR__."/test_schema.inc";
+$schema = <<<EOF
+    <simpleType name="EmptySimpleType">
+        <restriction base="string">
+            <enumeration value=""/>
+        </restriction>
+    </simpleType>
+EOF;
+test_schema($schema,'type="tns:EmptySimpleType"');
+?>
+--EXPECT--
+Methods:
+  > test(EmptySimpleType $testParam): void
+
+Types:
+  > http://test-uri/:EmptySimpleType extends string in ()
+