diff --git a/vul/vul-webapp-jakarta/src/main/webapp/WEB-INF/web.xml b/vul/vul-webapp-jakarta/src/main/webapp/WEB-INF/web.xml
index b3252b64..d547d9a9 100644
--- a/vul/vul-webapp-jakarta/src/main/webapp/WEB-INF/web.xml
+++ b/vul/vul-webapp-jakarta/src/main/webapp/WEB-INF/web.xml
@@ -1,5 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<web-app>
+<web-app
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xmlns="https://jakarta.ee/xml/ns/jakartaee"
+        xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd"
+        version="5.0"
+        metadata-complete="false"
+>
     <welcome-file-list>
         <welcome-file>index.html</welcome-file>
     </welcome-file-list>
diff --git a/vul/vul-webapp/src/main/webapp/WEB-INF/web.xml b/vul/vul-webapp/src/main/webapp/WEB-INF/web.xml
index dd4de793..a01b0cc5 100644
--- a/vul/vul-webapp/src/main/webapp/WEB-INF/web.xml
+++ b/vul/vul-webapp/src/main/webapp/WEB-INF/web.xml
@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<web-app>
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
+         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
+         id="WebApp_ID" version="2.5">
     <welcome-file-list>
         <welcome-file>index.html</welcome-file>
     </welcome-file-list>