diff --git a/GoogleBillingApiLib/build.gradle b/GoogleBillingApiLib/build.gradle
index d8ec561..f4c4b35 100644
--- a/GoogleBillingApiLib/build.gradle
+++ b/GoogleBillingApiLib/build.gradle
@@ -2,6 +2,7 @@ plugins {
     id 'com.android.library'
     id 'kotlin-android'
     id 'kotlin-kapt'
+    id 'maven-publish'
 }
 
 android {
@@ -23,6 +24,15 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
 }
 
 dependencies {
@@ -39,5 +49,17 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}
 
+afterEvaluate {
+    publishing {
+        publications {
+            release(MavenPublication) {
+                from components.release
+                groupId = 'com.github.ss26dev'
+                artifactId = 'GoogleBillingApi'
+                version = '1.1.0'
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 081cad1..264b2d8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,14 +11,16 @@ buildscript {
     repositories {
         google()
         mavenCentral()
+        maven { url 'https://jitpack.io' }
     }
     
     dependencies {
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
 
-        classpath 'com.android.tools.build:gradle:7.0.3'
+        classpath 'com.android.tools.build:gradle:7.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$version_kotlin"
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
     }
 }
 
@@ -26,6 +28,7 @@ allprojects {
     repositories {
         google()
         mavenCentral()
+        maven { url 'https://jitpack.io' }
     }
 }
 
diff --git a/jitpack.yml b/jitpack.yml
new file mode 100644
index 0000000..33b17ef
--- /dev/null
+++ b/jitpack.yml
@@ -0,0 +1,2 @@
+jdk:
+ - openjdk11
\ No newline at end of file
diff --git a/sample/build.gradle b/sample/build.gradle
index a17794c..334f3a3 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -23,6 +23,15 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
 }
 
 dependencies {
diff --git a/settings.gradle b/settings.gradle
index db6a337..92bea28 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,3 +1,2 @@
 include ':GoogleBillingApiLib'
-include ':sample'
 rootProject.name = "GoogleBillingApi"
\ No newline at end of file