diff --git a/src/Rhythm.Umbraco.Ditto.Archetype.Tests/packages.config b/src/Rhythm.Umbraco.Ditto.Archetype.Tests/packages.config
index adee092..2ce8e37 100644
--- a/src/Rhythm.Umbraco.Ditto.Archetype.Tests/packages.config
+++ b/src/Rhythm.Umbraco.Ditto.Archetype.Tests/packages.config
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="AutoMapper" version="3.0.0" targetFramework="net472" />
   <package id="ClientDependency" version="1.9.7" targetFramework="net472" />
@@ -38,6 +38,6 @@
   <package id="Owin" version="1.0" targetFramework="net472" />
   <package id="semver" version="1.1.2" targetFramework="net472" />
   <package id="SharpZipLib" version="0.86.0" targetFramework="net472" />
-  <package id="UmbracoCms.Core" version="7.3.2" targetFramework="net472" />
+  <package id="UmbracoCms.Core" version="8.5.4" targetFramework="net472" />
   <package id="xmlrpcnet" version="2.5.0" targetFramework="net472" />
 </packages>
\ No newline at end of file