--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,11 +1,21 @@
 project(kde-thumbnailer-ooxml)
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 2.8.12)
 
-find_package(KDE4 REQUIRED)
-include(KDE4Defaults)
+set(SHARED_MIME_INFO_MINIMUM_VERSION "0.30")
 
-add_definitions(${QT_DEFINITIONS} ${KDE4_DEFINITIONS})
-include_directories(${QT_INCLUDES} ${KDE4_INCLUDES})
+find_package(ECM REQUIRED NO_MODULE)
+set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
+
+include(KDEInstallDirs)
+include(KDECompilerSettings)
+include(KDECMakeSettings)
+include(FeatureSummary)
+
+find_package(Qt5 REQUIRED COMPONENTS Widgets)
+find_package(KF5 REQUIRED COMPONENTS KDELibs4Support KIO Archive)
+
+add_definitions(${QT_DEFINITIONS})
+include_directories(${QT_INCLUDES})
 
 set(libkowmf_SRCS
     libkowmf/WmfAbstractBackend.cpp
@@ -17,9 +27,9 @@
 
 set(ooxmlthumbnail_SRCS ooxmlcreator.cpp ${libkowmf_SRCS})
 
-kde4_add_plugin(ooxmlthumbnail ${ooxmlthumbnail_SRCS})
-target_link_libraries(ooxmlthumbnail
-    ${KDE4_KIO_LIBS}
+add_library(ooxmlthumbnail MODULE ${libkowmf_SRCS})
+target_link_libraries(ooxmlthumbnail PRIVATE
+    KF5::KDELibs4Support KF5::KIOCore KF5::Archive
     ${QT_QTXML_LIBRARY}
 )