diff --git a/app/src/main/java/com/moviebomber/adapter/MovieListAdapter.java b/app/src/main/java/com/moviebomber/adapter/MovieListAdapter.java
index 665d05c..7db3902 100644
--- a/app/src/main/java/com/moviebomber/adapter/MovieListAdapter.java
+++ b/app/src/main/java/com/moviebomber/adapter/MovieListAdapter.java
@@ -38,7 +38,7 @@ public class MovieListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHold
 	private List<MovieListItem> mMovieList = new ArrayList<>();
 	private Context mContext;
 	private boolean mShowBomberCount;
-	private int mAdPosition = (int)(Math.random() * 3) + 1;
+	private int mAdPosition = (int)(Math.random() * 2) + 1;
 
 	public MovieListAdapter(Context context, List<MovieListItem> mMovieList, boolean showBomberCount) {
 		this.mContext = context;
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1a1db9e..2c0e554 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -7,7 +7,7 @@
 
     <!-- global -->
     <string name="app_link">https://play.google.com/store/apps/details?id=com.moviebomber</string>
-    <string name="banner_ad_unit_id">ca-app-pub-3940256099942544/6300978111</string>
+    <string name="banner_ad_unit_id">ca-app-pub-9651803548105463/7415023435</string>
     <string name="font_roboto_medium">sans-serif-medium</string>
     <string name="font_roboto_regular">sans-serif</string>
     <string name="default_username">電影別雷開發者</string>