diff --git a/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/Interstitial.java b/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/Interstitial.java
index 921f11791..7820beef4 100644
--- a/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/Interstitial.java
+++ b/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/Interstitial.java
@@ -120,9 +120,14 @@ public void run() {
    * @param purchaseListener A PlayStorePurchaseListener for monitoring purchase events.
    * @param publicKey The app's public key string.
    */
-  public void setPlayStorePurchaseParams(PlayStorePurchaseListener purchaseListener,
-                                         String publicKey) {
-    interstitial.setPlayStorePurchaseParams(purchaseListener, publicKey);
+  public void setPlayStorePurchaseParams(final PlayStorePurchaseListener purchaseListener,
+                                         final String publicKey) {
+    activity.runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        interstitial.setPlayStorePurchaseParams(purchaseListener, publicKey);
+      }
+    });
   }
 
   /**
diff --git a/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/PluginUtils.java b/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/PluginUtils.java
index 81f5b7ec5..73a1fb068 100644
--- a/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/PluginUtils.java
+++ b/unity/source/plugin-library/app/src/main/java/com/google/unity/ads/PluginUtils.java
@@ -13,7 +13,7 @@
  */
 public class PluginUtils {
   /** Tag used for logging statements. */
-  public static final String LOGTAG = "GoogleMobileAdsUnityPlugin";
+  public static final String LOGTAG = "AdsUnity";
 
   /**
    * Gets a string error reason from an error code.
diff --git a/unity/source/plugin-library/gradle/wrapper/gradle-wrapper.jar b/unity/source/plugin-library/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 000000000..b31d5bf92
Binary files /dev/null and b/unity/source/plugin-library/gradle/wrapper/gradle-wrapper.jar differ