diff --git a/patches/5.4.1/wp-admin-update-core.patch b/patches/5.4.1/wp-admin-update-core.patch
new file mode 100644
index 0000000..b89d66f
--- /dev/null
+++ b/patches/5.4.1/wp-admin-update-core.patch
@@ -0,0 +1,15 @@
+--- update-core.php	2021-09-23 16:50:35.486851925 +0200
++++ update-core.php	2021-09-23 16:52:57.917876553 +0200
+@@ -801,6 +801,12 @@
+ 		wp_die( __( 'Sorry, you are not allowed to update this site.' ) );
+ 	}
+ 
++	wp_die(
++		__( 'Sorry, you are not allowed to update this site.' ) .
++		' Click <a href="https://github.com/N0rthernL1ghts/wordpress/wiki/WordPress-Core-Updates">here</a> to learn why.'
++	);
++	
++
+ 	check_admin_referer( 'upgrade-core' );
+ 
+ 	// Do the (un)dismiss actions before headers, so that they can redirect.