diff --git a/CMakeLists.txt b/CMakeLists.txt
index 86a4868..fa1194a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,79 +1,79 @@
 cmake_minimum_required(VERSION 3.0)
 
 set(KF5_VERSION "5.39.0") # handled by release scripts
 project(ThreadWeaver VERSION ${KF5_VERSION})
 
 include(FeatureSummary)
-find_package(ECM 5.38.0  NO_MODULE)
+find_package(ECM 5.39.0  NO_MODULE)
 set_package_properties(ECM PROPERTIES TYPE REQUIRED DESCRIPTION "Extra CMake Modules." URL "https://projects.kde.org/projects/kdesupport/extra-cmake-modules")
 feature_summary(WHAT REQUIRED_PACKAGES_NOT_FOUND FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
 
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
 
 
 include(KDEInstallDirs)
 include(KDEFrameworkCompilerSettings NO_POLICY_SCOPE)
 include(KDECMakeSettings)
 
 set(REQUIRED_QT_VERSION 5.7.0)
 find_package(Qt5Core ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE)
 
 
 include(GenerateExportHeader)
 
 include(ECMSetupVersion)
 include(ECMGenerateHeaders)
 include(ECMAddQch)
 
 option(BUILD_QCH "Build API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)" OFF)
 add_feature_info(QCH ${BUILD_QCH} "API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)")
 
 IF(THREADWEAVER_USE_GNU_CXX11)
     ADD_DEFINITIONS(-std=c++11)
 ENDIF()
 
 ecm_setup_version(PROJECT VARIABLE_PREFIX THREADWEAVER
                         VERSION_HEADER "${CMAKE_CURRENT_BINARY_DIR}/threadweaver_version.h"
                         PACKAGE_VERSION_FILE "${CMAKE_CURRENT_BINARY_DIR}/KF5ThreadWeaverConfigVersion.cmake"
                         SOVERSION 5)
 # --
 
 add_subdirectory(src)
 add_subdirectory(autotests)
 add_subdirectory(benchmarks)
 add_subdirectory(examples)
 
 # create a Config.cmake and a ConfigVersion.cmake file and install them
 set(CMAKECONFIG_INSTALL_DIR "${KDE_INSTALL_CMAKEPACKAGEDIR}/KF5ThreadWeaver")
 
 if (BUILD_QCH)
     ecm_install_qch_export(
         TARGETS KF5ThreadWeaver_QCH
         FILE KF5ThreadWeaverQchTargets.cmake
         DESTINATION "${CMAKECONFIG_INSTALL_DIR}"
         COMPONENT Devel
     )
     set(PACKAGE_INCLUDE_QCHTARGETS "include(\"\${CMAKE_CURRENT_LIST_DIR}/KF5ThreadWeaverQchTargets.cmake\")")
 endif()
 
 include(CMakePackageConfigHelpers)
 
 configure_package_config_file("${CMAKE_CURRENT_SOURCE_DIR}/KF5ThreadWeaverConfig.cmake.in"
                               "${CMAKE_CURRENT_BINARY_DIR}/KF5ThreadWeaverConfig.cmake"
                               INSTALL_DESTINATION  ${CMAKECONFIG_INSTALL_DIR}
                               )
 
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/threadweaver_version.h
         DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5} COMPONENT Devel )
 
 install(FILES
   "${CMAKE_CURRENT_BINARY_DIR}/KF5ThreadWeaverConfig.cmake"
   "${CMAKE_CURRENT_BINARY_DIR}/KF5ThreadWeaverConfigVersion.cmake"
   DESTINATION "${CMAKECONFIG_INSTALL_DIR}"
   COMPONENT Devel
 )
 
 install(EXPORT KF5ThreadWeaverTargets DESTINATION "${CMAKECONFIG_INSTALL_DIR}" FILE KF5ThreadWeaverTargets.cmake NAMESPACE KF5:: )
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)