diff --git a/app/src/main/java/team/uptech/motionviews/viewmodel/Layer.java b/app/src/main/java/team/uptech/motionviews/viewmodel/Layer.java
index c3de6c6..47197f4 100644
--- a/app/src/main/java/team/uptech/motionviews/viewmodel/Layer.java
+++ b/app/src/main/java/team/uptech/motionviews/viewmodel/Layer.java
@@ -37,7 +37,7 @@ protected void reset() {
     }
 
     public void postScale(float scaleDiff) {
-        float newVal = scale + scaleDiff;
+        float newVal = scale * scaleDiff;
         if (newVal >= getMinScale() && newVal <= getMaxScale()) {
             scale = newVal;
         }
diff --git a/app/src/main/java/team/uptech/motionviews/widget/MotionView.java b/app/src/main/java/team/uptech/motionviews/widget/MotionView.java
index 128477f..a6fb801 100644
--- a/app/src/main/java/team/uptech/motionviews/widget/MotionView.java
+++ b/app/src/main/java/team/uptech/motionviews/widget/MotionView.java
@@ -356,7 +356,7 @@ private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureLis
         public boolean onScale(ScaleGestureDetector detector) {
             if (selectedEntity != null) {
                 float scaleFactorDiff = detector.getScaleFactor();
-                selectedEntity.getLayer().postScale(scaleFactorDiff - 1.0F);
+                selectedEntity.getLayer().postScale(scaleFactorDiff);
                 updateUI();
             }
             return true;
diff --git a/build.gradle b/build.gradle
index d9b961b..60825dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.3'
+        classpath 'com.android.tools.build:gradle:3.0.0-alpha3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 04e285f..0aaaae1 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Mon Dec 28 10:00:20 PST 2015
+#Wed Jun 07 11:36:42 KRAT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-milestone-1-all.zip