diff --git a/.gitignore b/.gitignore
index 3543521..42afabf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-/build
+/build
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 28044d2..b6ab8ae 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,37 +1,25 @@
-buildscript {
-    ext.build_gradle_version = '3.6.1'
+apply plugin: 'com.android.application'
 
-    repositories {
-        maven { url 'https://maven.aliyun.com/repository/public/' }
-        maven { url 'https://maven.aliyun.com/repository/google/' }
-        maven { url 'https://maven.aliyun.com/repository/gradle-plugin/' }
-        maven { url 'https://dl.bintray.com/ppartisan/maven/' }
-        maven { url "https://clojars.org/repo/" }
-        maven { url "https://jitpack.io" }
-        google()
-        mavenLocal()
-        mavenCentral()
-    }
-    dependencies {
-        classpath "com.android.tools.build:gradle:$build_gradle_version"
-        
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        applicationId "com.drjava.testapp"
+        minSdkVersion 21
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
     }
-    
-}
-allprojects {
-    repositories {
-        maven { url 'https://maven.aliyun.com/repository/public/' } 
-        maven { url 'https://maven.aliyun.com/repository/google/' }
-        maven { url 'https://maven.aliyun.com/repository/gradle-plugin/' }
-        maven { url 'https://dl.bintray.com/ppartisan/maven/' }
-        maven { url "https://clojars.org/repo/" }
-        maven { url "https://jitpack.io" }
-        mavenLocal()
-        mavenCentral()
-        google()
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
     }
 }
 
-task clean(type: Delete) {
-    delete rootProject.buildDir
-}
\ No newline at end of file
+dependencies {
+    implementation fileTree(dir: "libs", include: ["*.jar"])
+}
diff --git a/proguard-rules.pro b/proguard-rules.pro
new file mode 100644
index 0000000..64b4a05
--- /dev/null
+++ b/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file