diff --git a/CMakeLists.txt b/CMakeLists.txt
index af5786b..637c1bd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,55 +1,55 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.5)
 
 project(KImageFormats)
 
 include(FeatureSummary)
 find_package(ECM 5.53.0  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)
 
 
 include(CheckIncludeFiles)
 
 set(REQUIRED_QT_VERSION 5.9.0)
 find_package(Qt5Gui ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE)
 
 find_package(KF5Archive)
 set_package_properties(KF5Archive PROPERTIES
     TYPE OPTIONAL
     PURPOSE "Required for the QImage plugin for Krita and OpenRaster images"
 )
 
 # EPS support depends on the gs utility; non-UNIX systems are unlikely to have
 # this available in PATH
 set(BUILD_EPS_PLUGIN FALSE)
 if (UNIX)
     find_package(Qt5PrintSupport ${REQUIRED_QT_VERSION} NO_MODULE)
     set_package_properties(Qt5PrintSupport PROPERTIES
         PURPOSE "Required for the QImage plugin for EPS images"
         TYPE OPTIONAL
     )
     if (Qt5PrintSupport_FOUND)
         set(BUILD_EPS_PLUGIN TRUE)
     endif()
 endif()
 
 find_package(OpenEXR)
 set_package_properties(OpenEXR PROPERTIES
     TYPE OPTIONAL
     PURPOSE "Required for the QImage plugin for OpenEXR images"
 )
 
 add_subdirectory(src)
 if (BUILD_TESTING)
     add_subdirectory(autotests)
     add_subdirectory(tests)
 endif()
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)