diff --git a/eclass/kde5-functions.eclass b/eclass/kde5-functions.eclass
index 3df54d5172425..cd0151eb296aa 100644
--- a/eclass/kde5-functions.eclass
+++ b/eclass/kde5-functions.eclass
@@ -37,6 +37,10 @@ case ${CATEGORY} in
 		[[ ${KDE_BUILD_TYPE} = live ]] && : ${FRAMEWORKS_MINIMAL:=9999}
 		;;
 	kde-plasma)
+		if [[ ${PV} = 5.12* ]]; then
+			: ${QT_MINIMAL:=5.9.1}
+			: ${FRAMEWORKS_MINIMAL:=5.42.0}
+		fi
 		if [[ ${KDE_BUILD_TYPE} = live ]]; then
 			: ${QT_MINIMAL:=5.9.1}
 			: ${FRAMEWORKS_MINIMAL:=9999}