diff --git a/xss-extension-string/pom.xml b/xss-extension-string/pom.xml
deleted file mode 100644
index ad6f7d3..0000000
--- a/xss-extension-string/pom.xml
+++ /dev/null
@@ -1,31 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-
-  <groupId>com.github.xss-stage</groupId>
-  <artifactId>xss-extension-string</artifactId>
-  <version>1.2</version>
-
-  <name>xss-extension-string</name>
-
-  <properties>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>8</maven.compiler.source>
-    <maven.compiler.target>8</maven.compiler.target>
-  </properties>
-
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>com.navercorp.lucy</groupId>
-        <artifactId>lucy-xss</artifactId>
-        <version>1.6.3</version>
-        <configuration>
-          <finalName>xss-extension-string</finalName>
-        </configuration>
-      </plugin>
-    </plugins>
-  </build>
-</project>
\ No newline at end of file