diff --git a/Editor/Polymorphic/PolymorphicCodeGenerator.cs b/Editor/Polymorphic/PolymorphicCodeGenerator.cs
index 6bb89af..493390c 100644
--- a/Editor/Polymorphic/PolymorphicCodeGenerator.cs
+++ b/Editor/Polymorphic/PolymorphicCodeGenerator.cs
@@ -236,7 +236,7 @@ public class PolymorphicCodeGenerator
     public void Generate()
     {
         var installerController = new InstallerController();
-        if (installerController.PackageVersion.CompareTo("8.4.0") < 0)
+        if (new Version(installerController.PackageVersion) < new Version("8.4.0"))
         {
             throw new Exception("Polymorphic code generation requires com.code-philosophy.hybridclr package version 8.4.0 or higher.");
         }