diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2aeb379..b6f8cc9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,68 +1,65 @@
 cmake_minimum_required(VERSION 3.0)
 
-project(LibKompareDiff2)
+project(LibKompareDiff2 VERSION "5.2")
 
 set(QT_MIN_VERSION "5.12.0")
 set(KF_MIN_VERSION "5.68.0")
 
 find_package(ECM ${KF_MIN_VERSION} REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH})
 
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
-include(ECMSetupVersion)
 include(ECMQtDeclareLoggingCategory)
 
 include(CMakePackageConfigHelpers)
 include(FeatureSummary)
 include(GenerateExportHeader)
 
 set(ADDITIONAL_REQUIRED_QT_COMPONENTS)
 if(BUILD_TESTING)
     list(APPEND ADDITIONAL_REQUIRED_QT_COMPONENTS Test)
 endif()
 
 find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED
     COMPONENTS
         Core
         Widgets
         ${ADDITIONAL_REQUIRED_QT_COMPONENTS}
 )
 
 find_package(KF5 ${KF_MIN_VERSION} REQUIRED
     COMPONENTS
         CoreAddons
         Codecs
         Config
         XmlGui
         I18n
         KIO
 )
 
-set(KOMPAREDIFF2_VERSION "5.2")
-
 add_definitions(
     -DQT_DEPRECATED_WARNINGS
     -DQT_DISABLE_DEPRECATED_BEFORE=0x050F00
     -DQT_DEPRECATED_WARNINGS_SINCE=0x060000
     -DQT_USE_QSTRINGBUILDER
     -DQT_NO_CAST_TO_ASCII
     -DQT_NO_CAST_FROM_ASCII
     -DQT_NO_CAST_FROM_BYTEARRAY
     -DQT_NO_URL_CAST_FROM_STRING
     -DQT_NO_KEYWORDS
     -DQT_STRICT_ITERATORS
     -DQT_NO_FOREACH
     -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT
     -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x054700
     -DKF_DEPRECATED_WARNINGS_SINCE=0x060000
 )
 
 add_subdirectory(src)
 
 if (BUILD_TESTING)
     add_subdirectory(tests)
 endif()
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4aac3b0..482fd69 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,101 +1,101 @@
 add_definitions(-DTRANSLATION_DOMAIN=\"libkomparediff2\")
 
-ecm_setup_version(${KOMPAREDIFF2_VERSION}
-    VARIABLE_PREFIX LIBKOMPAREDIFF2
-    PACKAGE_VERSION_FILE "${CMAKE_CURRENT_BINARY_DIR}/LibKompareDiff2ConfigVersion.cmake"
-    SOVERSION 5
-)
+set(LibKompareDiff2_SOVERSION 5)
 
 set(komparediff2_SRCS
     kompareprocess.cpp
     komparemodellist.cpp
     diffmodellist.cpp
     diffmodel.cpp
     difference.cpp
     diffhunk.cpp
     diffsettings.cpp
     settingsbase.cpp
     parser.cpp
     parserbase.cpp
     cvsdiffparser.cpp
     diffparser.cpp
     perforceparser.cpp
     stringlistpair.cpp
     kompare.cpp
 )
 
 ecm_qt_declare_logging_category(komparediff2_SRCS
     HEADER komparediffdebug.h
     IDENTIFIER LIBKOMPAREDIFF2
     CATEGORY_NAME "libkomparediff"
     DESCRIPTION "libkomparediff"
     EXPORT komparediff2
 )
 
 add_library(komparediff2 ${komparediff2_SRCS})
 generate_export_header(komparediff2 BASE_NAME diff2)
 
 target_link_libraries(komparediff2
     PUBLIC
         KF5::XmlGui
         KF5::ConfigCore
         Qt5::Widgets
         Qt5::Core
     PRIVATE
         KF5::Codecs
         KF5::KIOCore
         KF5::I18n
         KF5::CoreAddons
 )
 
 target_include_directories(komparediff2 INTERFACE "$<INSTALL_INTERFACE:${KDE_INSTALL_INCLUDEDIR}>")
 
 set_target_properties(komparediff2 PROPERTIES
-    VERSION ${LIBKOMPAREDIFF2_VERSION_STRING}
-    SOVERSION ${LIBKOMPAREDIFF2_SOVERSION}
+    VERSION ${LibKompareDiff2_VERSION}
+    SOVERSION ${LibKompareDiff2_SOVERSION}
     EXPORT_NAME "KompareDiff2"
 )
 
 install(TARGETS komparediff2 EXPORT LibKompareDiff2Targets ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 
 install(
     FILES
         ${CMAKE_CURRENT_BINARY_DIR}/diff2_export.h
         settingsbase.h
         diffsettings.h
         komparemodellist.h
         difference.h
         diffmodel.h
         diffmodellist.h
         marker.h
         kompare.h
         diffhunk.h
     DESTINATION
         ${KDE_INSTALL_INCLUDEDIR}/libkomparediff2
     COMPONENT
         Devel
 )
 
 ecm_qt_install_logging_categories(
     EXPORT komparediff2
     FILE libkomparediff2.categories
     DESTINATION "${KDE_INSTALL_LOGGINGCATEGORIESDIR}"
 )
 
 
 # CMake config files
 set(_LibKompareDiff2_CONFIG_DEST "${KDE_INSTALL_CMAKEPACKAGEDIR}/LibKompareDiff2")
 
 configure_package_config_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/LibKompareDiff2Config.cmake.in"
     "${CMAKE_CURRENT_BINARY_DIR}/LibKompareDiff2Config.cmake"
     INSTALL_DESTINATION  "${_LibKompareDiff2_CONFIG_DEST}"
 )
+write_basic_package_version_file(
+    "${CMAKE_CURRENT_BINARY_DIR}/LibKompareDiff2ConfigVersion.cmake"
+    COMPATIBILITY SameMajorVersion
+)
 
 install( FILES
         "${CMAKE_CURRENT_BINARY_DIR}/LibKompareDiff2ConfigVersion.cmake"
         "${CMAKE_CURRENT_BINARY_DIR}/LibKompareDiff2Config.cmake"
         DESTINATION "${_LibKompareDiff2_CONFIG_DEST}" )
 install( EXPORT LibKompareDiff2Targets
          DESTINATION "${_LibKompareDiff2_CONFIG_DEST}"
          FILE LibKompareDiff2Targets.cmake )