diff --git a/src/OpenIDConnectProvider.php b/src/OpenIDConnectProvider.php
index bd9f502..865cac0 100644
--- a/src/OpenIDConnectProvider.php
+++ b/src/OpenIDConnectProvider.php
@@ -21,7 +21,7 @@
 use OpenIDConnectClient\Validator\ValidatorChain;
 use Webmozart\Assert\Assert;
 
-final class OpenIDConnectProvider extends GenericProvider
+class OpenIDConnectProvider extends GenericProvider
 {
     private ValidatorChain $validatorChain;
     private Signer $signer;