diff --git a/tests/chunks/consumer.t.cpp b/tests/chunks/consumer.t.cpp
index d0a37fd..126f13a 100644
--- a/tests/chunks/consumer.t.cpp
+++ b/tests/chunks/consumer.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2016-2022, Regents of the University of California,
+ * Copyright (c) 2016-2023, Regents of the University of California,
  *                          Colorado State University,
  *                          University Pierre & Marie Curie, Sorbonne University.
  *
@@ -59,7 +59,7 @@
       "consequat massa Donec pede justo,"
   };
 
-  util::DummyClientFace face;
+  DummyClientFace face;
   output_test_stream output("");
   Consumer cons(security::getAcceptAllValidator(), output);
 
@@ -94,7 +94,7 @@
       "consequat massa Donec pede justo,"
   };
 
-  util::DummyClientFace face;
+  DummyClientFace face;
   output_test_stream output("");
   Consumer cons(security::getAcceptAllValidator(), output);
 
@@ -148,7 +148,7 @@
 
 BOOST_FIXTURE_TEST_CASE(RunBasic, IoFixture)
 {
-  util::DummyClientFace face(m_io);
+  DummyClientFace face(m_io);
   Options options;
   Consumer consumer(security::getAcceptAllValidator());
 
diff --git a/tests/chunks/discover-version.t.cpp b/tests/chunks/discover-version.t.cpp
index a07ecce..01e360e 100644
--- a/tests/chunks/discover-version.t.cpp
+++ b/tests/chunks/discover-version.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2016-2022, Regents of the University of California,
+ * Copyright (c) 2016-2023, Regents of the University of California,
  *                          Colorado State University,
  *                          University Pierre & Marie Curie, Sorbonne University.
  *
@@ -60,7 +60,7 @@
 protected:
   const Name name = "/ndn/chunks/test";
   const uint64_t version = 1449227841747;
-  util::DummyClientFace face{m_io};
+  DummyClientFace face{m_io};
   Options opt;
   unique_ptr<DiscoverVersion> discover;
   std::optional<Name> discoveredName;
diff --git a/tests/chunks/pipeline-interests-fixture.hpp b/tests/chunks/pipeline-interests-fixture.hpp
index ddfc82b..215f544 100644
--- a/tests/chunks/pipeline-interests-fixture.hpp
+++ b/tests/chunks/pipeline-interests-fixture.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2016-2022, Regents of the University of California,
+ * Copyright (c) 2016-2023, Regents of the University of California,
  *                          Colorado State University,
  *                          University Pierre & Marie Curie, Sorbonne University.
  *
@@ -77,7 +77,7 @@
   }
 
 protected:
-  util::DummyClientFace face{m_io};
+  DummyClientFace face{m_io};
   Name name{"/ndn/chunks/test"};
   uint64_t nDataSegments = 0;
   bool hasFailed = false;
diff --git a/tests/chunks/producer.t.cpp b/tests/chunks/producer.t.cpp
index fec11c6..34e601b 100644
--- a/tests/chunks/producer.t.cpp
+++ b/tests/chunks/producer.t.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2016-2022,  Regents of the University of California,
+ * Copyright (c) 2016-2023,  Regents of the University of California,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University.
  *
@@ -51,7 +51,7 @@
   }
 
 protected:
-  util::DummyClientFace face{m_io, {true, true}};
+  DummyClientFace face{m_io, {true, true}};
   Name prefix = "/ndn/chunks/test";
   Producer::Options options;
   uint64_t version = 1449227841747;