diff --git a/plugins/Marketplace/resources/qml/LicenseDialog.qml b/plugins/Marketplace/resources/qml/LicenseDialog.qml
index 775e53f7aa..5dd8ac6fc4 100644
--- a/plugins/Marketplace/resources/qml/LicenseDialog.qml
+++ b/plugins/Marketplace/resources/qml/LicenseDialog.qml
@@ -6,7 +6,7 @@ import QtQuick.Window 2.2
 import QtQuick.Controls 2.3
 import QtQuick.Layouts 1.3
 
-import UM 1.7 as UM
+import UM 1.6 as UM
 import Cura 1.6 as Cura
 
 UM.Dialog
diff --git a/plugins/Marketplace/resources/qml/MultipleLicenseDialog.qml b/plugins/Marketplace/resources/qml/MultipleLicenseDialog.qml
index b251aeab85..a3d4b60221 100644
--- a/plugins/Marketplace/resources/qml/MultipleLicenseDialog.qml
+++ b/plugins/Marketplace/resources/qml/MultipleLicenseDialog.qml
@@ -6,7 +6,7 @@ import QtQuick.Window 2.2
 import QtQuick.Controls 2.3
 import QtQuick.Layouts 1.3
 
-import UM 1.7 as UM
+import UM 1.5 as UM
 import Cura 1.6 as Cura
 
 UM.Dialog
diff --git a/plugins/SliceInfoPlugin/MoreInfoWindow.qml b/plugins/SliceInfoPlugin/MoreInfoWindow.qml
index 76b9e651c7..e0954dc55e 100644
--- a/plugins/SliceInfoPlugin/MoreInfoWindow.qml
+++ b/plugins/SliceInfoPlugin/MoreInfoWindow.qml
@@ -5,7 +5,7 @@ import QtQuick 2.10
 import QtQuick.Controls 2.3
 import QtQuick.Window 2.2
 
-import UM 1.7 as UM
+import UM 1.5 as UM
 import Cura 1.1 as Cura
 
 Window
diff --git a/resources/qml/WelcomePages/ChangelogContent.qml b/resources/qml/WelcomePages/ChangelogContent.qml
index 9be3c30373..7c3b1adfc3 100644
--- a/resources/qml/WelcomePages/ChangelogContent.qml
+++ b/resources/qml/WelcomePages/ChangelogContent.qml
@@ -4,7 +4,7 @@
 import QtQuick 2.10
 import QtQuick.Controls 2.3
 
-import UM 1.7 as UM
+import UM 1.5 as UM
 import Cura 1.1 as Cura
 
 
diff --git a/resources/qml/WelcomePages/WhatsNewContent.qml b/resources/qml/WelcomePages/WhatsNewContent.qml
index 787b280095..6406d65756 100644
--- a/resources/qml/WelcomePages/WhatsNewContent.qml
+++ b/resources/qml/WelcomePages/WhatsNewContent.qml
@@ -5,7 +5,7 @@ import QtQuick 2.10
 import QtQuick.Controls 2.3
 import QtQuick.Layouts 1.3
 
-import UM 1.7 as UM
+import UM 1.5 as UM
 import Cura 1.1 as Cura