diff --git a/brut.apktool/apktool-cli/build.gradle b/brut.apktool/apktool-cli/build.gradle
index ce8947b1..a078ef7b 100644
--- a/brut.apktool/apktool-cli/build.gradle
+++ b/brut.apktool/apktool-cli/build.gradle
@@ -16,8 +16,8 @@
 apply plugin: 'com.github.johnrengelman.shadow'
 
 dependencies {
-    compile depends.commons_cli
-    compile project(':brut.apktool:apktool-lib')
+    implementation depends.commons_cli
+    implementation project(':brut.apktool:apktool-lib')
 }
 
 buildscript {
diff --git a/brut.apktool/apktool-lib/build.gradle b/brut.apktool/apktool-lib/build.gradle
index 501f49df..bb294392 100644
--- a/brut.apktool/apktool-lib/build.gradle
+++ b/brut.apktool/apktool-lib/build.gradle
@@ -15,6 +15,8 @@
  */
 import org.apache.tools.ant.filters.*
 
+apply plugin: 'java-library'
+
 processResources {
   from('src/main/resources/properties') {
     include '**/*.properties'
@@ -29,19 +31,21 @@ processResources {
 }
 
 dependencies {
-    compile("junit:junit:4.10") {
+    testImplementation("junit:junit:4.10") {
         exclude(module: 'hamcrest-core')
     }
 
-    compile project(':brut.j.dir'),
-            project(':brut.j.util'),
-            project(':brut.j.common'),
-            depends.baksmali,
-            depends.smali,
-            depends.snakeyaml,
-            depends.xmlpull,
-            depends.guava,
-            depends.commons_lang
+    api project(':brut.j.dir'),
+        project(':brut.j.util'),
+        project(':brut.j.common')
 
-    testCompile depends.xmlunit
+    implementation depends.baksmali,
+                   depends.smali,
+                   depends.snakeyaml,
+                   depends.xmlpull,
+                   depends.guava,
+                   depends.commons_lang,
+                   depends.commons_io
+
+    testImplementation depends.xmlunit
 }
\ No newline at end of file
diff --git a/brut.j.common/build.gradle b/brut.j.common/build.gradle
index fdb85ada..9097e928 100644
--- a/brut.j.common/build.gradle
+++ b/brut.j.common/build.gradle
@@ -15,6 +15,6 @@
  */
 
 dependencies {
-    testCompile depends.junit
+    testImplementation depends.junit
 }
 
diff --git a/brut.j.dir/build.gradle b/brut.j.dir/build.gradle
index f39b3026..91d8f89b 100644
--- a/brut.j.dir/build.gradle
+++ b/brut.j.dir/build.gradle
@@ -15,7 +15,8 @@
  */
 
 dependencies {
-  compile project(':brut.j.common'),
-          project(':brut.j.util')
-  testCompile depends.junit
+  implementation project(':brut.j.common'),
+                 project(':brut.j.util'),
+                 depends.commons_io
+  testImplementation depends.junit
 }
diff --git a/brut.j.util/build.gradle b/brut.j.util/build.gradle
index 5cfda6d5..57d420b3 100644
--- a/brut.j.util/build.gradle
+++ b/brut.j.util/build.gradle
@@ -15,7 +15,7 @@
  */
 
 dependencies {
-  compile project(':brut.j.common'),
-          depends.commons_io
-  testCompile depends.junit
+  implementation project(':brut.j.common'),
+                 depends.commons_io
+  testImplementation depends.junit
 }
diff --git a/build.gradle b/build.gradle
index 4f9ed25b..c2dc26cd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -26,13 +26,13 @@ buildscript {
 }
 
 plugins {
-    id "com.github.hierynomus.license" version "0.15.0"
+    id 'com.github.hierynomus.license' version '0.15.0'
 }
 
 apply from: 'gradle/functions.gradle'
 
 def apktoolversion_major = '2.4.2'
-def apktoolversion_minor = 'SNAPSHOT';
+def apktoolversion_minor = 'SNAPSHOT'
 
 defaultTasks 'build', 'shadowJar', 'proguard'
 
@@ -48,7 +48,7 @@ allprojects {
         exclude "**/android/util/*.java"
         include "**/*.java"
         mapping {
-            java='SLASHSTAR_STYLE'
+            java = 'SLASHSTAR_STYLE'
         }
         strictCheck true