diff --git a/src/playbook/playbook.conf b/src/playbook/playbook.conf
index bc17d0eb3e..f882386d7c 100644
--- a/src/playbook/playbook.conf
+++ b/src/playbook/playbook.conf
@@ -2,7 +2,7 @@
 <Playbook>
 	<Name>AtlasOS</Name>
 	<Username>Atlas</Username>
-	<Title>AtlasOS Playbook v0.4.5 (dev)</Title>
+	<Title>AtlasOS Playbook v0.4.1 (dev)</Title>
 	<ShortDescription>AtlasOS Playbook for Windows 10 and 11</ShortDescription>
 	<Description><![CDATA[╭───────────── ⚠️ 𝗖𝗿𝗶𝘁𝗶𝗰𝗮𝗹 ⚠️ ─────────────╮
 │         Read the Atlas documentation first.       │
@@ -12,7 +12,7 @@
 Atlas makes your computer snappier and more private with lots of usability improvements.]]></Description>
 	<Details>An open and lightweight modification to Windows, designed to optimize performance, privacy and security.</Details>
 	<ProgressText><![CDATA[Atlas is currently installing software, copying its configuration folders, and tweaking Windows. If you are not already, we recommend following our documentation.]]></ProgressText>
-	<Version>0.4.5</Version>
+	<Version>0.4.1</Version>
 	<SupportedBuilds>
 		<!-- 22H2 -->
 		<string>19045</string>
@@ -31,6 +31,7 @@ Atlas makes your computer snappier and more private with lots of usability impro
 	<InstallGuide>https://docs.atlasos.net/getting-started/installation</InstallGuide>
 	<Overhaul>true</Overhaul>
 	<UseKernelDriver>false</UseKernelDriver>
+	<AllowUnsupportedUpgrades>false</AllowUnsupportedUpgrades>
 	<ProductCode>64</ProductCode>
 	<EstimatedMinutes>15</EstimatedMinutes>
 	<Git>https://github.com/Atlas-OS/Atlas</Git>