diff --git a/wp-includes/customize/class-wp-customize-theme-control.php b/wp-includes/customize/class-wp-customize-theme-control.php
index 5aca6639b5..ce2594bff6 100644
--- a/wp-includes/customize/class-wp-customize-theme-control.php
+++ b/wp-includes/customize/class-wp-customize-theme-control.php
@@ -93,8 +93,15 @@ class WP_Customize_Theme_Control extends WP_Customize_Control {
 				<div class="update-message notice inline notice-warning notice-alt" data-slug="{{ data.theme.id }}">
 					<p>
 						<?php
-						/* translators: %s: "Update now" button */
-						printf( __( 'New version available. %s' ), '<button class="button-link update-theme" type="button">' . __( 'Update now' ) . '</button>' );
+						if ( is_multisite() ) {
+							_e( 'New version available.' );
+						} else {
+							printf(
+								/* translators: %s: "Update now" button */
+								__( 'New version available. %s' ),
+								'<button class="button-link update-theme" type="button">' . __( 'Update now' ) . '</button>'
+							);
+						}
 						?>
 					</p>
 				</div>
diff --git a/wp-includes/version.php b/wp-includes/version.php
index dca23fa2f1..2d836f5101 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-45526';
+$wp_version = '5.3-alpha-45527';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.