diff --git a/backend/build.gradle b/backend/build.gradle
index 01227d9..8f158f7 100644
--- a/backend/build.gradle
+++ b/backend/build.gradle
@@ -3,7 +3,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath "org.bdware.bdcontract:simple-ypk-packer:0.6.0"
+        classpath "org.bdware.bdcontract:simple-ypk-packer:0.6.3"
         classpath "org.bdware.bdcontract:ypk-deploy-tool:0.7.4"
     }
 }
@@ -11,12 +11,14 @@ plugins {
     id 'java'
     id 'java-library'
 }
-
+def moduleName = "backend"
+def relativePath = "./${moduleName}"
+def currVersion = "1.3.6"
+def appName = "contract-java-example"
 tasks.withType(JavaCompile) {
     options.compilerArgs << '-Xlint:none'
     options.compilerArgs << '-Xlint:deprecation' << "-Werror"
 }
-
 sourceSets {
     main {
         java {
@@ -39,7 +41,7 @@ sourceSets {
 dependencies {
     api 'org.apache.logging.log4j:log4j-core:2.17.2'
     api 'org.apache.logging.log4j:log4j-api:2.17.2'
-    implementation 'org.bdware.sc:cp:1.9.1'
+    implementation 'org.bdware.sc:cp:1.9.9'
     testImplementation 'junit:junit:4.13.2'
 }
 
@@ -67,21 +69,18 @@ task copyAssets(type: Copy) {
     into "./build/output/assets/"
 }
 
-task copyJar(type: Copy, dependsOn: [":backend:jar", ":backend:copyLibs"]) {
-    from "./build/libs/$project.name-${project.version}.jar"
+task copyJar(type: Copy, dependsOn: [":${moduleName}:jar", ":${moduleName}:copyLibs"]) {
+    from "./build/libs/${moduleName}.jar"
     into "./build/output"
-    rename { String fileName -> "sc-example.jar" }
+    rename { String fileName -> "${appName}.jar" }
     doFirst {
         println "copyJar start"
     }
 }
-def reltivePath = "./backend"
-//reltivePath="."
-def currVersion = "1.3.4"
 task grepCP(dependsOn: ["copyJar"]) {
     doLast {
-        org.bdware.datanet.YPKPacker.grepJarByCPVersion("${reltivePath}/build/output/libs", org.bdware.datanet.CPVersion.cp_1_8_3)
-        org.bdware.datanet.YPKPacker.grepJarByListFile("${reltivePath}/build/output/libs", "${reltivePath}/grepcp.list")
+        org.bdware.datanet.YPKPacker.grepJarByCPVersion("${relativePath}/build/output/libs", org.bdware.datanet.CPVersion.cp_1_9_0)
+        org.bdware.datanet.YPKPacker.grepJarByListFile("${relativePath}/build/output/libs", "${relativePath}/grepcp.list")
 
     }
 }
@@ -91,18 +90,18 @@ tasks.processTestResources.setDuplicatesStrategy(DuplicatesStrategy.INCLUDE)
 task buildZip(type: Zip, dependsOn: ["copyAssets", "copyJar", "copyYJS", "grepCP", "copyFront"]) {
     from './build/output/'
     duplicatesStrategy = DuplicatesStrategy.INCLUDE
-    archiveFileName = 'contractexample.zip'
+    archiveFileName = "${appName}.zip"
     destinationDirectory = file('build/')
 }
 
 task buildYPK(dependsOn: ["buildZip"]) {
     doLast {
-        org.bdware.datanet.YPKPacker.staticPack("${reltivePath}/build/contractexample.zip", "${reltivePath}/build/contractexample-${currVersion}.ypk")
+        org.bdware.datanet.YPKPacker.staticPack("${relativePath}/build/${appName}.zip", "${relativePath}/build/${appName}-${currVersion}.ypk")
     }
 }
 
 task deploy(dependsOn: ["buildYPK"]) {
     doLast {
-        org.bdware.ypkdeploy.HTTPTool.deployWithYpk("${reltivePath}/debugconf.json", "${reltivePath}/build/contractexample-${currVersion}.ypk")
+        org.bdware.ypkdeploy.HTTPTool.deployWithYpk("${relativePath}/debugconf.json", "${relativePath}/build/${appName}-${currVersion}.ypk")
     }
 }
\ No newline at end of file
diff --git a/backend/grepcp.list b/backend/grepcp.list
index 76f63e9..46b836d 100644
--- a/backend/grepcp.list
+++ b/backend/grepcp.list
@@ -1,7 +1,10 @@
-sdk-java-1.0.2.jar
-common-1.7.5.jar
-cp-1.9.1.jar
-delta-crdts-1.1.0.jar
-doip-audit-tool-1.2.9.jar
-doip-sdk-1.4.6.jar
-irp-sdk-1.1.6.jar
\ No newline at end of file
+checker-qual-3.31.0.jar
+common-1.7.9.jar
+cp-1.9.9.jar
+delta-crdts-1.2.0.jar
+doip-audit-tool-1.3.6.jar
+doip-sdk-1.4.9.jar
+gson-2.10.1.jar
+mysql-connector-j-8.0.33.jar
+postgresql-42.6.0.jar
+protobuf-java-3.21.9.jar
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 07534d3..f08ebbd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,8 @@ plugins {
     id 'java'
     id 'idea'
 }
-
+sourceCompatibility = JavaVersion.VERSION_1_8
+targetCompatibility = JavaVersion.VERSION_1_8
 tasks.withType(JavaCompile) {
     options.compilerArgs << '-Xlint:none'
     options.compilerArgs << '-Xlint:deprecation' << "-Werror"
@@ -15,6 +16,5 @@ project(':backend') {
     group = "org.bdware.sc.example"
     repositories {
         mavenCentral()
-        maven { url 'https://maven.aliyun.com/repository/public' }
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..41dfb87
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists