diff --git a/src/certificate-request.hpp b/src/certificate-request.hpp
index 96c70ca..c8de2ee 100644
--- a/src/certificate-request.hpp
+++ b/src/certificate-request.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2017-2019, Regents of the University of California.
+ * Copyright (c) 2017-2020, Regents of the University of California.
  *
  * This file is part of ndncert, a certificate management system based on NDN.
  *
@@ -22,7 +22,7 @@
 #define NDNCERT_CERTIFICATE_REQUEST_HPP
 
 #include "ndncert-common.hpp"
-#include <ndn-cxx/security/v2/certificate.hpp>
+#include <ndn-cxx/security/certificate.hpp>
 
 namespace ndn {
 namespace ndncert {