diff --git a/vector/src/main/java/im/vector/riotx/features/media/BigImageViewerActivity.kt b/vector/src/main/java/im/vector/riotx/features/media/BigImageViewerActivity.kt
index 9262fd3051..9465152c1b 100644
--- a/vector/src/main/java/im/vector/riotx/features/media/BigImageViewerActivity.kt
+++ b/vector/src/main/java/im/vector/riotx/features/media/BigImageViewerActivity.kt
@@ -17,7 +17,6 @@
 package im.vector.riotx.features.media
 
 import android.app.Activity
-import android.app.AlertDialog
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
@@ -25,6 +24,7 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
 import androidx.core.net.toUri
 import com.yalantis.ucrop.UCrop
 import im.vector.riotx.R