diff --git a/ChangeLog.txt b/ChangeLog.txt
index ee3d47ede..7aa8b5f6a 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,5 +1,18 @@
 Google Mobile Ads Unity Plugin Change Log
 
+**************
+Version 5.3.0
+**************
+
+Plugin:
+- Add InitializationStatusClient for Init callback in Unity Editor. Fixes #1394.
+- Update to Android SDK version 19.3.0
+
+Built and tested with:
+- Google Play services 19.3.0
+- Google Mobile Ads iOS SDK 7.63.0
+- External Dependency Manager for Unity 1.2.156.
+
 **************
 Version 5.2.0
 **************
diff --git a/source/plugin/Assets/GoogleMobileAds/Api/Core/AdRequest.cs b/source/plugin/Assets/GoogleMobileAds/Api/Core/AdRequest.cs
index ac14c9f36..b3ff975f0 100644
--- a/source/plugin/Assets/GoogleMobileAds/Api/Core/AdRequest.cs
+++ b/source/plugin/Assets/GoogleMobileAds/Api/Core/AdRequest.cs
@@ -21,7 +21,7 @@ namespace GoogleMobileAds.Api
 {
     public class AdRequest
     {
-        public const string Version = "5.2.0";
+        public const string Version = "5.3.0";
         public const string TestDeviceSimulator = "SIMULATOR";
 
         private AdRequest(Builder builder)
diff --git a/source/plugin/Assets/GoogleMobileAds/Editor/GoogleMobileAdsDependencies.xml b/source/plugin/Assets/GoogleMobileAds/Editor/GoogleMobileAdsDependencies.xml
index 0244ff5dd..e639e5c06 100644
--- a/source/plugin/Assets/GoogleMobileAds/Editor/GoogleMobileAdsDependencies.xml
+++ b/source/plugin/Assets/GoogleMobileAds/Editor/GoogleMobileAdsDependencies.xml
@@ -1,6 +1,6 @@
 <dependencies>
   <androidPackages>
-    <androidPackage spec="com.google.android.gms:play-services-ads:19.2.0">
+    <androidPackage spec="com.google.android.gms:play-services-ads:19.3.0">
       <repositories>
         <repository>https://maven.google.com/</repository>
       </repositories>
@@ -8,7 +8,7 @@
   </androidPackages>
 
   <iosPods>
-    <iosPod name="Google-Mobile-Ads-SDK" version="~> 7.60">
+    <iosPod name="Google-Mobile-Ads-SDK" version="~> 7.63">
       <sources>
         <source>https://github.com/CocoaPods/Specs</source>
       </sources>