diff --git a/composer.json b/composer.json
index e96bd0a..db3cae2 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,8 @@
         },
         "allow-plugins": {
             "composer/package-versions-deprecated": true,
-            "simplesamlphp/composer-module-installer": true
+            "simplesamlphp/composer-module-installer": true,
+            "dealerdirect/phpcodesniffer-composer-installer": true
         }
     },
     "autoload": {
diff --git a/src/Controller/Adfs.php b/src/Controller/Adfs.php
index de14c8e..407f692 100644
--- a/src/Controller/Adfs.php
+++ b/src/Controller/Adfs.php
@@ -5,19 +5,17 @@
 namespace SimpleSAML\Module\adfs\Controller;
 
 use Exception;
-use SimpleSAML\SAML2\Constants;
 use SimpleSAML\Assert\Assert;
 use SimpleSAML\Configuration;
 use SimpleSAML\Error as SspError;
 use SimpleSAML\IdP;
-use SimpleSAML\Locale\Translate;
 use SimpleSAML\Logger;
+use SimpleSAML\Metadata;
 use SimpleSAML\Module;
 use SimpleSAML\Module\adfs\IdP\ADFS as ADFS_IDP;
-use SimpleSAML\Metadata;
+use SimpleSAML\SAML2\Constants;
 use SimpleSAML\Session;
 use SimpleSAML\Utils;
-use SimpleSAML\XHTML\Template;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\StreamedResponse;
diff --git a/tests/src/Controller/AdfsControllerTest.php b/tests/src/Controller/AdfsControllerTest.php
index 9243111..0b6cffa 100644
--- a/tests/src/Controller/AdfsControllerTest.php
+++ b/tests/src/Controller/AdfsControllerTest.php
@@ -11,7 +11,6 @@
 use SimpleSAML\Module\adfs\Controller;
 use SimpleSAML\Session;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
 
 use function dirname;