diff --git a/src/security/certificate-store.hpp b/src/security/certificate-store.hpp
index 2a47caa..0c01bf0 100644
--- a/src/security/certificate-store.hpp
+++ b/src/security/certificate-store.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2022,  The University of Memphis,
+ * Copyright (c) 2014-2023,  The University of Memphis,
  *                           Regents of the University of California,
  *                           Arizona Board of Regents.
  *
@@ -104,7 +104,7 @@
   ndn::Face& m_face;
   ConfParameter& m_confParam;
   ndn::security::ValidatorConfig& m_validator;
-  ndn::util::signal::ScopedConnection m_afterSegmentValidatedConnection;
+  ndn::signal::ScopedConnection m_afterSegmentValidatedConnection;
 };
 
 } // namespace security