diff --git a/webmagic-core/pom.xml.versionsBackup b/webmagic-core/pom.xml.versionsBackup
deleted file mode 100644
index b530bab..0000000
--- a/webmagic-core/pom.xml.versionsBackup
+++ /dev/null
@@ -1,86 +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">
-    <parent>
-        <groupId>us.codecraft</groupId>
-        <artifactId>webmagic-parent</artifactId>
-        <version>0.5.2</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-
-    <artifactId>webmagic-core</artifactId>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.apache.httpcomponents</groupId>
-            <artifactId>httpclient</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>us.codecraft</groupId>
-            <artifactId>xsoup</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>com.github.dreamhead</groupId>
-            <artifactId>moco-core</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>commons-collections</groupId>
-            <artifactId>commons-collections</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>org.assertj</groupId>
-            <artifactId>assertj-core</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>org.jsoup</groupId>
-            <artifactId>jsoup</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-io</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>com.jayway.jsonpath</groupId>
-            <artifactId>json-path</artifactId>
-            <version>0.8.1</version>
-        </dependency>
-
-        <dependency>
-            <groupId>com.alibaba</groupId>
-            <artifactId>fastjson</artifactId>
-        </dependency>
-
-    </dependencies>
-
-</project>
\ No newline at end of file
diff --git a/webmagic-extension/pom.xml.versionsBackup b/webmagic-extension/pom.xml.versionsBackup
deleted file mode 100644
index 47496ec..0000000
--- a/webmagic-extension/pom.xml.versionsBackup
+++ /dev/null
@@ -1,29 +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">
-    <parent>
-        <groupId>us.codecraft</groupId>
-        <artifactId>webmagic-parent</artifactId>
-        <version>0.5.2</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-
-    <artifactId>webmagic-extension</artifactId>
-
-    <dependencies>
-        <dependency>
-            <groupId>redis.clients</groupId>
-            <artifactId>jedis</artifactId>
-            <version>2.0.0</version>
-        </dependency>
-        <dependency>
-            <groupId>us.codecraft</groupId>
-            <artifactId>webmagic-core</artifactId>
-            <version>${project.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-        </dependency>
-    </dependencies>
-
-</project>
\ No newline at end of file