diff --git a/wp-includes/update.php b/wp-includes/update.php
index 028a4d138..d8de2bf2d 100644
--- a/wp-includes/update.php
+++ b/wp-includes/update.php
@@ -143,7 +143,8 @@ function wp_update_plugins() {
 
 	$new_option = new stdClass;
 	$new_option->last_checked = time();
-	$timeout = 'load-plugins.php' == current_filter() ? 3600 : 43200; //Check for updated every 60 minutes if hitting the themes page, Else, check every 12 hours
+	// Check for updated every 60 minutes if hitting update pages; else, check every 12 hours.
+	$timeout = in_array( current_filter(), array( 'load-plugins.php', 'load-update.php', 'load-update-core.php' ) ) ? 3600 : 43200;
 	$time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
 
 	$plugin_changed = false;
@@ -221,7 +222,8 @@ function wp_update_themes() {
 	if ( ! is_object($last_update) )
 		$last_update = new stdClass;
 
-	$timeout = 'load-themes.php' == current_filter() ? 3600 : 43200; //Check for updated every 60 minutes if hitting the themes page, Else, check every 12 hours
+	// Check for updated every 60 minutes if hitting update pages; else, check every 12 hours.
+	$timeout = in_array( current_filter(), array( 'load-themes.php', 'load-update.php', 'load-update-core.php' ) ) ? 3600 : 43200;
 	$time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time( ) - $last_update->last_checked );
 
 	$themes = array();