diff --git a/Assets/Mirage/Editor/WelcomeWindow/WelcomeWindow.cs b/Assets/Mirage/Editor/WelcomeWindow/WelcomeWindow.cs
index 22351d7785..828c4075f9 100644
--- a/Assets/Mirage/Editor/WelcomeWindow/WelcomeWindow.cs
+++ b/Assets/Mirage/Editor/WelcomeWindow/WelcomeWindow.cs
@@ -9,6 +9,10 @@
 using UnityEditor.PackageManager.Requests;
 using UnityEngine;
 using UnityEngine.UIElements;
+#if UNITY_2021_3_OR_NEWER
+using System.Linq;
+using PackageInfo = UnityEditor.PackageManager.PackageInfo;
+#endif
 
 /**
  * Docs used: