diff --git a/classes/outagedb.php b/classes/outagedb.php
index 555f531..72fb454 100644
--- a/classes/outagedb.php
+++ b/classes/outagedb.php
@@ -25,8 +25,6 @@
 
 namespace auth_outage;
 
-use Box\Spout\Common\Exception\InvalidArgumentException;
-
 final class outagedb
 {
     /**
diff --git a/classes/outageutils.php b/classes/outageutils.php
index e1abb87..37bf9b2 100644
--- a/classes/outageutils.php
+++ b/classes/outageutils.php
@@ -16,8 +16,6 @@
 
 namespace auth_outage;
 
-use Horde\Socket\Client\Exception;
-
 if (!defined('MOODLE_INTERNAL')) {
     die('Direct access to this script is forbidden.'); // It must be included from a Moodle page.
 }