diff --git a/tests/unit/util/config-file.t.cpp b/tests/unit/util/config-file.t.cpp
index ab8f212..eac5f21 100644
--- a/tests/unit/util/config-file.t.cpp
+++ b/tests/unit/util/config-file.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2013-2023 Regents of the University of California.
+ * Copyright (c) 2013-2024 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -24,7 +24,6 @@
 #include "tests/boost-test.hpp"
 #include "tests/unit/test-home-env-saver.hpp"
 
-#include <boost/filesystem/operations.hpp>
 #include <cstdlib>
 
 namespace ndn::tests {
@@ -34,15 +33,13 @@
 
 BOOST_AUTO_TEST_CASE(Parse)
 {
-  namespace fs = boost::filesystem;
-
   setenv("TEST_HOME", "tests/unit/util/config-file-home", 1);
 
-  fs::path homePath(fs::absolute(std::getenv("TEST_HOME")));
+  auto homePath = std::filesystem::absolute(std::getenv("TEST_HOME"));
   homePath /= ".ndn/client.conf";
 
   ConfigFile config;
-  BOOST_REQUIRE_EQUAL(config.getPath(), homePath);
+  BOOST_CHECK_EQUAL(config.getPath(), homePath);
 
   const ConfigFile::Parsed& parsed = config.getParsedConfiguration();
   BOOST_CHECK_EQUAL(parsed.get<std::string>("a"), "/path/to/nowhere");
@@ -53,14 +50,14 @@
 {
   setenv("TEST_HOME", "tests/unit/util/does/not/exist", 1);
 
-  BOOST_CHECK_NO_THROW(ConfigFile config);
+  BOOST_CHECK_NO_THROW(ConfigFile{});
 }
 
 BOOST_AUTO_TEST_CASE(ParseMalformed)
 {
   setenv("TEST_HOME", "tests/unit/util/config-file-malformed-home", 1);
 
-  BOOST_CHECK_THROW(ConfigFile config, ConfigFile::Error);
+  BOOST_CHECK_THROW(ConfigFile{}, ConfigFile::Error);
 }
 
 BOOST_AUTO_TEST_SUITE_END() // TestConfigFile
diff --git a/tests/unit/util/io.t.cpp b/tests/unit/util/io.t.cpp
index 2dc303d..350abf6 100644
--- a/tests/unit/util/io.t.cpp
+++ b/tests/unit/util/io.t.cpp
@@ -24,9 +24,11 @@
 #include "tests/boost-test.hpp"
 #include "tests/key-chain-fixture.hpp"
 
-#include <boost/filesystem.hpp>
 #include <boost/mp11/list.hpp>
 
+#include <filesystem>
+#include <system_error>
+
 namespace ndn::tests {
 
 BOOST_AUTO_TEST_SUITE(Util)
@@ -100,25 +102,23 @@
 {
 protected:
   FileIoFixture()
-    : filepath(boost::filesystem::path(UNIT_TESTS_TMPDIR) / "TestIo")
-    , filename(filepath.string())
   {
-    boost::filesystem::create_directories(filepath.parent_path());
+    std::filesystem::create_directories(filename.parent_path());
   }
 
   ~FileIoFixture()
   {
-    boost::system::error_code ec;
-    boost::filesystem::remove(filepath, ec); // ignore error
+    std::error_code ec;
+    std::filesystem::remove(filename, ec); // ignore error
   }
 
   /**
-   * \brief Create a directory at `filepath`, so that it's neither readable nor writable as a file.
+   * \brief Create a directory at `filename`, so that it's neither readable nor writable as a file.
    */
   void
   mkdir() const
   {
-    boost::filesystem::create_directory(filepath);
+    std::filesystem::create_directory(filename);
   }
 
   template<typename Container>
@@ -148,8 +148,7 @@
   }
 
 protected:
-  const boost::filesystem::path filepath;
-  const std::string filename;
+  const std::filesystem::path filename{std::filesystem::path(UNIT_TESTS_TMPDIR) / "TestIo"};
 };
 
 BOOST_FIXTURE_TEST_SUITE(FileIo, FileIoFixture)
diff --git a/tests/unit/util/sqlite3-statement.t.cpp b/tests/unit/util/sqlite3-statement.t.cpp
index b3d32d5..fe114c9 100644
--- a/tests/unit/util/sqlite3-statement.t.cpp
+++ b/tests/unit/util/sqlite3-statement.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2013-2023 Regents of the University of California.
+ * Copyright (c) 2013-2024 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *
@@ -23,8 +23,8 @@
 
 #include "tests/boost-test.hpp"
 
-#include <boost/filesystem.hpp>
 #include <cstring>
+#include <filesystem>
 #include <sqlite3.h>
 
 namespace ndn::tests {
@@ -36,9 +36,9 @@
 public:
   Sqlite3DbFixture()
   {
-    boost::filesystem::create_directories(m_path);
+    std::filesystem::create_directories(m_path);
 
-    int result = sqlite3_open_v2((m_path / "sqlite3-statement.db").string().c_str(), &db,
+    int result = sqlite3_open_v2((m_path / "sqlite3-statement.db").c_str(), &db,
                                  SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE,
 #ifdef NDN_CXX_DISABLE_SQLITE3_FS_LOCKING
                                  "unix-dotfile"
@@ -48,21 +48,21 @@
                                  );
 
     if (result != SQLITE_OK) {
-      BOOST_FAIL("Sqlite3 database cannot be opened/created: " + m_path.string());
+      BOOST_FAIL("Sqlite3 database cannot be opened/created: " + m_path.native());
     }
   }
 
   ~Sqlite3DbFixture()
   {
     sqlite3_close(db);
-    boost::filesystem::remove_all(m_path);
+    std::filesystem::remove_all(m_path);
   }
 
 protected:
   sqlite3* db = nullptr;
 
 private:
-  const boost::filesystem::path m_path{UNIT_TESTS_TMPDIR};
+  const std::filesystem::path m_path{UNIT_TESTS_TMPDIR};
 };
 
 BOOST_AUTO_TEST_SUITE(Util)