diff --git a/desktop/kde6/applications/cantor-kf6/pspec.xml b/desktop/kde6/applications/cantor-kf6/pspec.xml
index 66e7baf55a..153f822043 100755
--- a/desktop/kde6/applications/cantor-kf6/pspec.xml
+++ b/desktop/kde6/applications/cantor-kf6/pspec.xml
@@ -25,6 +25,7 @@
             <Dependency versionFrom="13.0.4">mesa-devel</Dependency>
             <Dependency versionFrom="6.6.3">qt6-svg-devel</Dependency>
             <Dependency versionFrom="6.6.3">qt6-webengine-devel</Dependency>
+            <Dependency versionFrom="6.6.3">qt6-5compat-devel</Dependency>
             <Dependency>kdoctools-kf6-devel</Dependency>
             <Dependency>kitemmodels-kf6-devel</Dependency>
             <Dependency>kunitconversion-kf6-devel</Dependency>
@@ -43,39 +44,6 @@
             <Dependency>poppler-qt6-devel</Dependency>
             <Dependency>karchive-kf6-devel</Dependency>
             <Dependency>extra-cmake-modules-kf6</Dependency>
-
-<!--             KF5 -->
-            <!--Dependency versionFrom="5.15.2">qt5-base-devel</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-sql-sqlite</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-sql-odbc</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-sql-mysql</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-sql-postgresql</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-assistant-devel</Dependency>
-            <Dependency versionFrom="13.0.4">mesa-devel</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-svg-devel</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-xmlpatterns-devel</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-webengine-devel</Dependency>
-            <Dependency>kdesignerplugin</Dependency>
-            <Dependency>kdoctools-devel</Dependency>
-            <Dependency>kemoticons-devel</Dependency>
-            <Dependency>kitemmodels-devel</Dependency>
-            <Dependency>ki18n-devel</Dependency>
-            <Dependency>kinit-devel</Dependency>
-            <Dependency>kunitconversion-devel</Dependency>
-            <Dependency>ktexteditor-devel</Dependency>
-            <Dependency>knewstuff-devel</Dependency>
-            <Dependency>kpty-devel</Dependency>
-            <Dependency>libqalculate-devel</Dependency>
-            <Dependency>cln-devel</Dependency>
-            <Dependency>libspectre-devel</Dependency>
-            <Dependency>python-devel</Dependency>
-            <Dependency>python3-devel</Dependency>
-            <Dependency>R-devel</Dependency>
-            <Dependency>luajit-devel</Dependency>
-            <Dependency>syntax-highlighting-devel</Dependency>
-            <Dependency>poppler-qt5-devel</Dependency>
-            <Dependency>karchive-devel</Dependency>
-            <Dependency>ffmpeg4-devel</Dependency-->
         </BuildDependencies>
     </Source>
 
@@ -109,36 +77,6 @@
             <Dependency>kconfigwidgets-kf6</Dependency>
             <Dependency>kwidgetsaddons-kf6</Dependency>
             <Dependency versionFrom="6.6.3">qt6-base</Dependency>
-<!--             kf5 -->
-            <!--Dependency>R</Dependency>
-            <Dependency>kio</Dependency>
-            <Dependency>syntax-highlighting</Dependency>
-            <Dependency>ki18n</Dependency>
-            <Dependency>kparts</Dependency>
-            <Dependency>kcrash</Dependency>
-            <Dependency>libgcc</Dependency>
-            <Dependency>luajit</Dependency>
-            <Dependency>python3</Dependency>
-            <Dependency>kconfig</Dependency>
-            <Dependency>kxmlgui</Dependency>
-            <Dependency>karchive</Dependency>
-            <Dependency>libspectre</Dependency>
-            <Dependency>knewstuff</Dependency>
-            <Dependency>kcompletion</Dependency>
-            <Dependency>kcoreaddons</Dependency>
-            <Dependency>kiconthemes</Dependency>
-            <Dependency>ktexteditor</Dependency>
-            <Dependency>ktextwidgets</Dependency>
-            <Dependency>libqalculate</Dependency>
-            <Dependency>kconfigwidgets</Dependency>
-            <Dependency>kwidgetsaddons</Dependency>
-            <Dependency>poppler-qt5</Dependency>
-            <Dependency>ffmpeg4</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-svg</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-base</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-xmlpatterns</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-assistant</Dependency>
-            <Dependency versionFrom="5.15.2">qt5-webengine</Dependency-->
         </RuntimeDependencies>
         <Files>
             <Path fileType="config">/etc</Path>