diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,7 @@
 include(CPack)
 include(FeatureSummary)
 
-find_package(Qt5 ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE COMPONENTS Core Concurrent Quick Gui Svg QuickControls2)
+find_package(Qt5 ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE COMPONENTS Core Quick Gui Svg QuickControls2)
 if (BUILD_TESTING)
     find_package(Qt5QuickTest ${REQUIRED_QT_VERSION} CONFIG QUIET)
 endif()
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -87,7 +87,7 @@
         PUBLIC
             Qt5::Core
         PRIVATE
-            ${Kirigami_EXTRA_LIBS} Qt5::Qml Qt5::Quick Qt5::QuickControls2 Qt5::Concurrent
+            ${Kirigami_EXTRA_LIBS} Qt5::Qml Qt5::Quick Qt5::QuickControls2
     )
 
 if (BUILD_SHARED_LIBS)
diff --git a/src/colorutils.cpp b/src/colorutils.cpp
--- a/src/colorutils.cpp
+++ b/src/colorutils.cpp
@@ -8,7 +8,6 @@
 
 #include <QIcon>
 #include <QtMath>
-#include <QtConcurrent>
 #include <cmath>
 #include <map>