diff --git a/build.gradle b/build.gradle
index 24d6cbf9..d641ad1a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:4.0.1'
     }
 }
 
@@ -14,13 +14,15 @@ allprojects {
         maven {
             url "https://maven.google.com"
         }
+        google()
     }
 }
 
 ext {
     compileSdkVersion = 28
     buildToolsVersion = '28.0.3'
-    androidXLibraryVersion = '1.0.0'
+    androidXAppCompatVersion = '1.2.0'
+    androidXLibraryVersion = '1.3.0'
 
     PUBLISH_GROUP_ID = 'com.theartofdev.edmodo'
     PUBLISH_ARTIFACT_ID = 'android-image-cropper'
diff --git a/cropper/build.gradle b/cropper/build.gradle
index 7bea026c..a3883efd 100644
--- a/cropper/build.gradle
+++ b/cropper/build.gradle
@@ -42,7 +42,7 @@ publishing {
 apply from: 'https://raw.githubusercontent.com/blundell/release-android-library/master/android-release-aar.gradle'
 
 dependencies {
-    api "androidx.appcompat:appcompat:$androidXLibraryVersion"
+    api "androidx.appcompat:appcompat:$androidXAppCompatVersion"
     implementation "androidx.exifinterface:exifinterface:$androidXLibraryVersion"
 }
 
diff --git a/cropper/src/main/java/com/theartofdev/edmodo/cropper/CropImageActivity.java b/cropper/src/main/java/com/theartofdev/edmodo/cropper/CropImageActivity.java
index d1afa9f0..59184fbe 100644
--- a/cropper/src/main/java/com/theartofdev/edmodo/cropper/CropImageActivity.java
+++ b/cropper/src/main/java/com/theartofdev/edmodo/cropper/CropImageActivity.java
@@ -189,6 +189,7 @@ public void onBackPressed() {
   @Override
   @SuppressLint("NewApi")
   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+    super.onActivityResult(requestCode, resultCode, data);
 
     // handle result of pick image chooser
     if (requestCode == CropImage.PICK_IMAGE_CHOOSER_REQUEST_CODE) {
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a9559919..10d0c123 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Apr 06 15:20:13 IDT 2018
+#Sun Sep 27 19:53:05 CEST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
diff --git a/quick-start/build.gradle b/quick-start/build.gradle
index 0f037fe7..366f165c 100644
--- a/quick-start/build.gradle
+++ b/quick-start/build.gradle
@@ -5,7 +5,7 @@ android {
     buildToolsVersion rootProject.buildToolsVersion
 
     defaultConfig {
-        minSdkVersion 14
+        minSdkVersion 21
         targetSdkVersion rootProject.compileSdkVersion
         versionCode 1
         versionName '1.0'
@@ -17,5 +17,5 @@ android {
 
 dependencies {
     api project(':cropper')
-    api "androidx.appcompat:appcompat:$androidXLibraryVersion"
+    api "androidx.appcompat:appcompat:$androidXAppCompatVersion"
 }
diff --git a/quick-start/src/main/java/com/theartofdev/edmodo/cropper/quick/start/MainActivity.java b/quick-start/src/main/java/com/theartofdev/edmodo/cropper/quick/start/MainActivity.java
index 01974e95..df7d542a 100644
--- a/quick-start/src/main/java/com/theartofdev/edmodo/cropper/quick/start/MainActivity.java
+++ b/quick-start/src/main/java/com/theartofdev/edmodo/cropper/quick/start/MainActivity.java
@@ -44,6 +44,7 @@ public void onSelectImageClick(View view) {
 
   @Override
   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+    super.onActivityResult(requestCode, resultCode, data);
 
     // handle result of CropImageActivity
     if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
diff --git a/sample/build.gradle b/sample/build.gradle
index 0f037fe7..a15ad969 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -17,5 +17,5 @@ android {
 
 dependencies {
     api project(':cropper')
-    api "androidx.appcompat:appcompat:$androidXLibraryVersion"
+    api "androidx.appcompat:appcompat:$androidXAppCompatVersion"
 }
diff --git a/test/build.gradle b/test/build.gradle
index 1d150522..1ada2947 100644
--- a/test/build.gradle
+++ b/test/build.gradle
@@ -16,7 +16,7 @@ android {
 }
 
 dependencies {
-    api "androidx.appcompat:appcompat:$androidXLibraryVersion"
+    api "androidx.appcompat:appcompat:$androidXAppCompatVersion"
     implementation project(":cropper")
 
 }
diff --git a/test/src/main/java/com/theartofdev/edmodo/cropper/test/MainActivity.java b/test/src/main/java/com/theartofdev/edmodo/cropper/test/MainActivity.java
index 06fe2362..7d102154 100644
--- a/test/src/main/java/com/theartofdev/edmodo/cropper/test/MainActivity.java
+++ b/test/src/main/java/com/theartofdev/edmodo/cropper/test/MainActivity.java
@@ -26,6 +26,7 @@ public void onSelectImageClick(View view) {
 
   @Override
   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+    super.onActivityResult(requestCode, resultCode, data);
 
     // handle result of CropImageActivity
     if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {