diff --git a/source/data/metainfo.xml b/source/data/metainfo.xml
index 975346e5ce076769e3a12104a3fecf24fc2ac46b..39bf16e03d013922b2e57bb6f0f96879472720a4 100644
--- a/source/data/metainfo.xml
+++ b/source/data/metainfo.xml
@@ -57,6 +57,13 @@
 	<launchable type="desktop-id">io.gitlab.zehkira.Monophony.desktop</launchable>
 	<content_rating type="oars-1.1"></content_rating>
 	<releases>
+		<release version="4.2.1" date="2025-12-10">
+			<description>
+				<ul>
+					<li>Updated to support latest YT changes</li>
+				</ul>
+			</description>
+		</release>
 		<release version="4.2.0" date="2025-11-25">
 			<description>
 				<ul>
diff --git a/source/monophony/__init__.py b/source/monophony/__init__.py
index 7ffd380a313904ccfe49caf2f9edc250cb5678db..3baade57843923cfb8f6b7c7c6c3de5ad760658f 100644
--- a/source/monophony/__init__.py
+++ b/source/monophony/__init__.py
@@ -4,7 +4,7 @@ import pathlib
 import logboth
 
 
-__version__ = '4.2.0'
+__version__ = '4.2.1'
 ID = 'io.gitlab.zehkira.Monophony' # Full ID per Freedesktop standards
 NAME = 'monophony' # Use for app executable, directories and so on
 DISPLAY_NAME = 'Monophony' # For window titles and such - do not use in logic