diff --git a/dubbo-common/src/main/resources/security/serialize.allowlist b/dubbo-common/src/main/resources/security/serialize.allowlist
index bab3d2d932..f033134975 100644
--- a/dubbo-common/src/main/resources/security/serialize.allowlist
+++ b/dubbo-common/src/main/resources/security/serialize.allowlist
@@ -131,6 +131,7 @@ com.alibaba.com.caucho.hessian.io
 com.alibaba.dubbo.rpc.service.GenericException
 org.apache.dubbo.rpc.service.GenericException
 org.apache.dubbo.rpc.RpcException
+org.apache.dubbo.remoting.http12.ErrorResponse
 org.apache.dubbo.common.url.component.ServiceConfigURL
 org.apache.dubbo.common.URL
 org.apache.dubbo.common.url.component.URLAddress