diff --git a/.jitpack.yml b/.jitpack.yml
new file mode 100644
index 0000000..46c8529
--- /dev/null
+++ b/.jitpack.yml
@@ -0,0 +1,2 @@
+jdk:
+  - openjdk11
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index 0af5532..2b6ac7c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,11 +1,14 @@
-apply plugin: 'com.android.application'
+plugins {
+    id 'com.android.application'
+}
 
 android {
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdkVersion
+
     defaultConfig {
         applicationId "example.simple.spiderman"
-        minSdkVersion rootProject.ext.minSdkVersion
-        targetSdkVersion rootProject.ext.targetSdkVersion
+        minSdk rootProject.ext.minSdkVersion
+        targetSdk rootProject.ext.targetSdkVersion
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -34,6 +37,11 @@ android {
         }
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
 }
 
 dependencies {
diff --git a/build.gradle b/build.gradle
index 5ecb981..822337f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,15 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-
     repositories {
         google()
         jcenter()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.2'
-        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.3'
-        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.0'
+        classpath 'com.android.tools.build:gradle:7.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -20,6 +18,7 @@ allprojects {
     repositories {
         google()
 //        jcenter()
+        mavenCentral()
         maven { url 'https://jitpack.io' }
     }
 }
@@ -29,12 +28,12 @@ task clean(type: Delete) {
 }
 
 ext {
-    sm_version = "1.1.7"
-    sm_no_op_version = "1.1.5"
+    sm_version = "1.1.9"
+    sm_no_op_version = "1.1.9"
 
-    compileSdkVersion = 28
+    compileSdkVersion = 30
     minSdkVersion = 14
-    targetSdkVersion = 28
+    targetSdkVersion = 30
 
     appcompat = "28.0.0"
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 3b303c9..211153c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Apr 20 16:41:52 CST 2018
+#Tue Dec 03 11:10:12 CST 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
diff --git a/spiderman-callback/build.gradle b/spiderman-callback/build.gradle
index 1c36dd1..0f2bef6 100644
--- a/spiderman-callback/build.gradle
+++ b/spiderman-callback/build.gradle
@@ -1,15 +1,32 @@
-apply plugin: 'com.android.library'
+plugins {
+    id 'com.android.library'
+    id 'maven-publish'
+}
+
+afterEvaluate {
+    publishing {
+        publications {
+            release(MavenPublication) {
+                from components.release
+            }
+        }
+    }
+}
 
 android {
     resourcePrefix "simple"
 
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdkVersion
 
     defaultConfig {
-        minSdkVersion rootProject.ext.minSdkVersion
-//        targetSdkVersion 27
+        minSdk rootProject.ext.minSdkVersion
+        targetSdk rootProject.ext.targetSdkVersion
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
diff --git a/spiderman-libs/build.gradle b/spiderman-libs/build.gradle
index 522b652..ef2e849 100644
--- a/spiderman-libs/build.gradle
+++ b/spiderman-libs/build.gradle
@@ -1,15 +1,32 @@
-apply plugin: 'com.android.library'
+plugins {
+    id 'com.android.library'
+    id 'maven-publish'
+}
+
+afterEvaluate {
+    publishing {
+        publications {
+            release(MavenPublication) {
+                from components.release
+            }
+        }
+    }
+}
 
 android {
     resourcePrefix "simple"
 
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdkVersion
 
     defaultConfig {
-        minSdkVersion rootProject.ext.minSdkVersion
-//        targetSdkVersion 27
+        minSdk rootProject.ext.minSdkVersion
+        targetSdk rootProject.ext.targetSdkVersion
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
diff --git a/spiderman-no-op/build.gradle b/spiderman-no-op/build.gradle
index 7b83714..5636444 100644
--- a/spiderman-no-op/build.gradle
+++ b/spiderman-no-op/build.gradle
@@ -1,16 +1,32 @@
-apply plugin: 'com.android.library'
+plugins {
+    id 'com.android.library'
+    id 'maven-publish'
+}
+
+afterEvaluate {
+    publishing {
+        publications {
+            release(MavenPublication) {
+                from components.release
+            }
+        }
+    }
+}
 
 android {
     resourcePrefix "simple"
 
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdkVersion
 
     defaultConfig {
-        minSdkVersion rootProject.ext.minSdkVersion
-//        targetSdkVersion 27
-
+        minSdk rootProject.ext.minSdkVersion
+        targetSdk rootProject.ext.targetSdkVersion
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
diff --git a/spiderman/build.gradle b/spiderman/build.gradle
index 1c9bba6..2eb4e9e 100644
--- a/spiderman/build.gradle
+++ b/spiderman/build.gradle
@@ -1,15 +1,32 @@
-apply plugin: 'com.android.library'
+plugins {
+    id 'com.android.library'
+    id 'maven-publish'
+}
+
+afterEvaluate {
+    publishing {
+        publications {
+            release(MavenPublication) {
+                from components.release
+            }
+        }
+    }
+}
 
 android {
     resourcePrefix "simple"
 
-    compileSdkVersion rootProject.ext.compileSdkVersion
+    compileSdk rootProject.ext.compileSdkVersion
 
     defaultConfig {
-        minSdkVersion rootProject.ext.minSdkVersion
-//        targetSdkVersion 27
+        minSdk rootProject.ext.minSdkVersion
+        targetSdk rootProject.ext.targetSdkVersion
     }
 
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {