diff --git a/src/access-manager.cpp b/src/access-manager.cpp
index 70ad8be..144034d 100644
--- a/src/access-manager.cpp
+++ b/src/access-manager.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2022, Regents of the University of California
+ * Copyright (c) 2014-2024, Regents of the University of California
  *
  * NAC library is free software: you can redistribute it and/or modify it under the
  * terms of the GNU Lesser General Public License as published by the Free Software
@@ -46,7 +46,7 @@
 
   auto kekPrefix = Name(m_nacKey.getIdentity()).append(KEK);
 
-  auto kek = make_shared<Data>(m_nacKey.getDefaultCertificate());
+  auto kek = std::make_shared<Data>(m_nacKey.getDefaultCertificate());
   kek->setName(Name(kekPrefix).append(nacKeyId));
   kek->setFreshnessPeriod(DEFAULT_KEK_FRESHNESS_PERIOD);
   m_keyChain.sign(*kek, signingByIdentity(m_identity));
@@ -106,7 +106,7 @@
   content.setPayload(kdkData->wireEncode());
   content.setPayloadKey(memberKey.encrypt({secret, secretLength}));
 
-  auto kdk = make_shared<Data>(kdkName);
+  auto kdk = std::make_shared<Data>(kdkName);
   kdk->setContent(content.wireEncode());
   // FreshnessPeriod can serve as a soft access control for revoking access
   kdk->setFreshnessPeriod(DEFAULT_KDK_FRESHNESS_PERIOD);
diff --git a/src/encryptor.cpp b/src/encryptor.cpp
index b41af4c..31acda5 100644
--- a/src/encryptor.cpp
+++ b/src/encryptor.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2023, Regents of the University of California
+ * Copyright (c) 2014-2024, Regents of the University of California
  *
  * NAC library is free software: you can redistribute it and/or modify it under the
  * terms of the GNU Lesser General Public License as published by the Free Software
@@ -117,7 +117,7 @@
 Encryptor::encrypt(span<const uint8_t> data)
 {
   // Generate IV
-  auto iv = make_shared<Buffer>(AES_IV_SIZE);
+  auto iv = std::make_shared<Buffer>(AES_IV_SIZE);
   random::generateSecureBytes(*iv);
 
   OBufferStream os;
@@ -192,7 +192,7 @@
     EncryptedContent content;
     content.setPayload(kek.encrypt(m_ckBits));
 
-    auto ckData = make_shared<Data>(Name(m_ckName).append(ENCRYPTED_BY).append(m_kek->getName()));
+    auto ckData = std::make_shared<Data>(Name(m_ckName).append(ENCRYPTED_BY).append(m_kek->getName()));
     ckData->setContent(content.wireEncode());
     // FreshnessPeriod can serve as a soft access control for revoking access
     ckData->setFreshnessPeriod(DEFAULT_CK_FRESHNESS_PERIOD);
diff --git a/tests/clock-fixture.cpp b/tests/clock-fixture.cpp
index abad20c..5ad70a6 100644
--- a/tests/clock-fixture.cpp
+++ b/tests/clock-fixture.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2022, Regents of the University of California
+ * Copyright (c) 2014-2024, Regents of the University of California
  *
  * NAC library is free software: you can redistribute it and/or modify it under the
  * terms of the GNU Lesser General Public License as published by the Free Software
@@ -22,8 +22,8 @@
 namespace ndn::nac::tests {
 
 ClockFixture::ClockFixture()
-  : m_steadyClock(make_shared<time::UnitTestSteadyClock>())
-  , m_systemClock(make_shared<time::UnitTestSystemClock>())
+  : m_steadyClock(std::make_shared<time::UnitTestSteadyClock>())
+  , m_systemClock(std::make_shared<time::UnitTestSystemClock>())
 {
   time::setCustomClocks(m_steadyClock, m_systemClock);
 }
diff --git a/tests/clock-fixture.hpp b/tests/clock-fixture.hpp
index b6b40b1..3e280b5 100644
--- a/tests/clock-fixture.hpp
+++ b/tests/clock-fixture.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2022, Regents of the University of California
+ * Copyright (c) 2014-2024, Regents of the University of California
  *
  * NAC library is free software: you can redistribute it and/or modify it under the
  * terms of the GNU Lesser General Public License as published by the Free Software
@@ -73,8 +73,8 @@
   }
 
 protected:
-  shared_ptr<time::UnitTestSteadyClock> m_steadyClock;
-  shared_ptr<time::UnitTestSystemClock> m_systemClock;
+  std::shared_ptr<time::UnitTestSteadyClock> m_steadyClock;
+  std::shared_ptr<time::UnitTestSystemClock> m_systemClock;
 };
 
 } // namespace ndn::nac::tests
diff --git a/tests/unit/decryptor.t.cpp b/tests/unit/decryptor.t.cpp
index 14ebedf..8766907 100644
--- a/tests/unit/decryptor.t.cpp
+++ b/tests/unit/decryptor.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2023, Regents of the University of California
+ * Copyright (c) 2014-2024, Regents of the University of California
  *
  * NAC library is free software: you can redistribute it and/or modify it under the
  * terms of the GNU Lesser General Public License as published by the Free Software
@@ -41,10 +41,10 @@
   {
     StaticData data;
     for (const auto& block : data.managerPackets) {
-      m_ims.insert(*make_shared<Data>(block));
+      m_ims.insert(*std::make_shared<Data>(block));
     }
     for (const auto& block : data.encryptorPackets) {
-      m_ims.insert(*make_shared<Data>(block));
+      m_ims.insert(*std::make_shared<Data>(block));
     }
 
     auto serveFromIms = [this] (const Name&, const Interest& interest) {
diff --git a/tests/unit/encrypted-content.t.cpp b/tests/unit/encrypted-content.t.cpp
index 9c1f631..e14da41 100644
--- a/tests/unit/encrypted-content.t.cpp
+++ b/tests/unit/encrypted-content.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2023, Regents of the University of California
+ * Copyright (c) 2014-2024, Regents of the University of California
  *
  * This file is part of NAC (Name-Based Access Control for NDN).
  * See AUTHORS.md for complete list of NAC authors and contributors.
@@ -35,7 +35,7 @@
 public:
   EncryptedContent content;
   Block randomBlock = "01 03 000000"_block;
-  ConstBufferPtr randomBuffer = make_shared<const Buffer>(10);
+  ConstBufferPtr randomBuffer = std::make_shared<const Buffer>(10);
 };
 
 BOOST_FIXTURE_TEST_SUITE(TestEncryptedContent, EncryptedContentFixture)
diff --git a/tests/unit/encryptor.t.cpp b/tests/unit/encryptor.t.cpp
index 4a2e0a9..5c486f7 100644
--- a/tests/unit/encryptor.t.cpp
+++ b/tests/unit/encryptor.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2023, Regents of the University of California
+ * Copyright (c) 2014-2024, Regents of the University of California
  *
  * NAC library is free software: you can redistribute it and/or modify it under the
  * terms of the GNU Lesser General Public License as published by the Free Software
@@ -59,7 +59,7 @@
   {
     StaticData data;
     for (const auto& block : data.managerPackets) {
-      m_ims.insert(*make_shared<Data>(block));
+      m_ims.insert(*std::make_shared<Data>(block));
     }
     advanceClocks(1_ms, 10);
   }