diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@
 set(KDECONNECT_VERSION "${KDECONNECT_VERSION_MAJOR}.${KDECONNECT_VERSION_MINOR}.${KDECONNECT_VERSION_PATCH}")
 
 set(QT_MIN_VERSION "5.7.0")
-set(KF5_MIN_VERSION "5.45.0")
+set(KF5_MIN_VERSION "5.42.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR} ${CMAKE_SOURCE_DIR}/cmake)
diff --git a/kcm/kcm.cpp b/kcm/kcm.cpp
--- a/kcm/kcm.cpp
+++ b/kcm/kcm.cpp
@@ -35,6 +35,7 @@
 #include <KPluginFactory>
 #include <KAboutData>
 #include <KLocalizedString>
+#include <kcmutils_version.h>
 
 #include "ui_kcm.h"
 #include "interfaces/dbusinterfaces.h"
@@ -116,6 +117,8 @@
 
     daemon->acquireDiscoveryMode(createId());
 
+    #if KCMUTILS_VERSION >= QT_VERSION_CHECK(5, 45, 0)
+
     if (!args.isEmpty() && args.first().type() == QVariant::String) {
         const QString input = args.first().toString();
         const auto colonIdx = input.indexOf(QLatin1Char(':'));
@@ -134,6 +137,8 @@
             disconnect(devicesModel, &DevicesModel::rowsInserted, this, nullptr);
         });
     }
+
+    #endif
 }
 
 void KdeConnectKcm::renameShow()
diff --git a/plugins/runcommand/runcommandplugin.cpp b/plugins/runcommand/runcommandplugin.cpp
--- a/plugins/runcommand/runcommandplugin.cpp
+++ b/plugins/runcommand/runcommandplugin.cpp
@@ -29,6 +29,7 @@
 #include <QSettings>
 #include <QJsonDocument>
 #include <KShell>
+#include <kcmutils_version.h>
 
 #include <core/networkpacket.h>
 #include <core/device.h>
@@ -85,7 +86,11 @@
 {
     QString commands = config()->get<QString>(QStringLiteral("commands"),QStringLiteral("{}"));
     NetworkPacket np(PACKET_TYPE_RUNCOMMAND, {{"commandList", commands}});
-    np.set<bool>(QStringLiteral("canAddCommand"), true);
+
+    #if KCMUTILS_VERSION >= QT_VERSION_CHECK(5, 45, 0)
+        np.set<bool>(QStringLiteral("canAddCommand"), true);
+    #endif
+
     sendPacket(np);
 }