diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2519029..ce43aad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@ set(META_GUI_OPTIONAL true)
 set(META_JS_SRC_DIR renamingutility)
 set(META_VERSION_MAJOR 2)
 set(META_VERSION_MINOR 2)
-set(META_VERSION_PATCH 2)
+set(META_VERSION_PATCH 3)
 set(META_NO_TIDY ON)
 
 # add project files
@@ -204,7 +204,7 @@ set(REQUIRED_ICONS
 )
 
 # find c++utilities
-find_package(c++utilities 4.6.0 REQUIRED)
+find_package(c++utilities 4.8.0 REQUIRED)
 use_cpp_utilities()
 include(BasicConfig)
 
diff --git a/tests/cli.cpp b/tests/cli.cpp
index e76b718..90d756d 100644
--- a/tests/cli.cpp
+++ b/tests/cli.cpp
@@ -12,6 +12,7 @@
 
 using namespace std;
 using namespace TestUtilities;
+using namespace TestUtilities::Literals;
 using namespace ConversionUtilities;
 using namespace Media;
 
@@ -654,7 +655,7 @@ void CliTests::testExtraction()
     MediaFileInfo extractedInfo("/tmp/extracted.jpeg");
     extractedInfo.open(true);
     extractedInfo.parseContainerFormat();
-    CPPUNIT_ASSERT_EQUAL(22771ul, extractedInfo.size());
+    CPPUNIT_ASSERT_EQUAL(22771_st, extractedInfo.size());
     CPPUNIT_ASSERT(ContainerFormat::Jpeg == extractedInfo.containerFormat());
     extractedInfo.invalidate();
 
@@ -667,7 +668,7 @@ void CliTests::testExtraction()
     TESTUTILS_ASSERT_EXEC(args3);
     extractedInfo.open(true);
     extractedInfo.parseContainerFormat();
-    CPPUNIT_ASSERT_EQUAL(22771ul, extractedInfo.size());
+    CPPUNIT_ASSERT_EQUAL(22771_st, extractedInfo.size());
     CPPUNIT_ASSERT(ContainerFormat::Jpeg == extractedInfo.containerFormat());
     remove("/tmp/extracted.jpeg");
     remove(mp4File2.data());