diff --git a/lib/SimpleSAML/Compat/SspContainer.php b/lib/SimpleSAML/Compat/SspContainer.php
index 0da4b6fbae410dc2b085a83a46547693a2b66372..f098d275f87798b5b4866e75584d5f8ceb491abb 100644
--- a/lib/SimpleSAML/Compat/SspContainer.php
+++ b/lib/SimpleSAML/Compat/SspContainer.php
@@ -6,10 +6,7 @@ namespace SimpleSAML\Compat;
 
 use Psr\Log\LoggerInterface;
 use SAML2\Compat\AbstractContainer;
-use SAML2\XML\saml\CustomIdentifierInterface;
-use SimpleSAML\Assert\Assert;
 use SimpleSAML\Utils;
-use SimpleSAML\XML\AbstractXMLElement;
 
 class SspContainer extends AbstractContainer
 {