diff --git a/office/calligra/calligra-plan/actions.py b/office/calligra/calligra-plan/actions.py
index c65f632a21..67ecd88082 100644
--- a/office/calligra/calligra-plan/actions.py
+++ b/office/calligra/calligra-plan/actions.py
@@ -5,19 +5,19 @@
 # See the file http://www.gnu.org/licenses/gpl.txt
 
 from pisi.actionsapi import pisitools
-from pisi.actionsapi import kde5
+from pisi.actionsapi import kde6
 
 def setup():
-    kde5.configure()
+    kde6.configure()
 
 def build():
-    kde5.configure("-DCMAKE_BUILD_TYPE=Release \
+    kde6.configure("-DCMAKE_BUILD_TYPE=Release \
                     -DCMAKE_INSTALL_PREFIX=/usr \
                     -DKDE_INSTALL_LIBDIR=lib \
                     -DBUILD_TESTING=OFF \
                     -DBUILD_UNMAINTAINED=ON")
 
 def install():
-    kde5.install()
+    kde6.install()
 
     pisitools.dodoc("COPYING*", "TODO")
diff --git a/office/calligra/calligra-plan/pspec.xml b/office/calligra/calligra-plan/pspec.xml
index a3b2f06462..2dbaba57d3 100644
--- a/office/calligra/calligra-plan/pspec.xml
+++ b/office/calligra/calligra-plan/pspec.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" ?>
-<!DOCTYPE PISI SYSTEM "http://www.pisilinux.org/projeler/pisi/pisi-spec.dtd">
+<!DOCTYPE PISI SYSTEM "https://pisilinux.org/projeler/pisi/pisi-spec.dtd">
 <PISI>
     <Source>
         <Name>calligra-plan</Name>
@@ -12,82 +12,75 @@
         <IsA>app:gui</IsA>
         <Summary>A project management application intended for managing moderately large projects with multiple resources</Summary>
         <Description>Birden fazla kaynağa sahip ılımlı büyük projeleri yönetmek için tasarlanmış bir proje yönetimi uygulaması</Description>
-        <Archive sha1sum="0289041068c31c6bee142d9a10a9bb7e7662d0af" type="tarxz">https://download.kde.org/stable/calligra/3.3.0/calligraplan-3.3.0.tar.xz</Archive>
+        <Archive sha1sum="a25fce87fe8266f0007a32c0b2fbfbd119352637" type="tarxz">https://download.kde.org/stable/calligraplan/calligraplan-4.0.0.tar.xz</Archive>
         <BuildDependencies>
-             <Dependency versionFrom="5.78.0">extra-cmake-modules</Dependency>
-             <Dependency versionFrom="2.3.2">qca2-qt5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kholidays5-devel</Dependency>
-             <Dependency versionFrom="5.14.0">qt5-base-devel</Dependency>
-             <Dependency versionFrom="5.14.0">qt5-declarative-devel</Dependency>
-             <Dependency versionFrom="5.14.0">qt5-svg-devel</Dependency>
-             <Dependency versionFrom="5.14.0">qt5-x11extras-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kcmutils5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kcompletion5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kconfig5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kconfigwidgets5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kcoreaddons5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kdoctools5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kguiaddons5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">ki18n5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kiconthemes5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kinit5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kio5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kitemviews5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kjobwidgets5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">knotifyconfig5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kross5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">ktextwidgets5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kwallet5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kwidgetsaddons5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kwindowsystem5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">kxmlgui5-devel</Dependency>
-             <Dependency versionFrom="5.78.0">sonnet5-devel</Dependency>
-<!--              <Dependency>akonadi-contacts-devel</Dependency> -->
-             <Dependency>kdbusaddons5-devel</Dependency>
-<!--              <Dependency>akonadi-devel</Dependency> -->
-             <Dependency>kactivities5-devel</Dependency>
-             <Dependency>knotifications5-devel</Dependency>
-             <Dependency>karchive5-devel</Dependency>
-             <Dependency>kproperty-devel</Dependency>
-             <Dependency>kreport-devel</Dependency>
-             <Dependency>kcodecs5-devel</Dependency>
-             <Dependency versionFrom="2.8.0">kdiagram5-devel</Dependency>
-             <Dependency>kparts5-devel</Dependency>
-             <Dependency>libX11-devel</Dependency>
-             <Dependency>zlib-devel</Dependency>
-             <Dependency>perl</Dependency>
+            <Dependency>perl</Dependency>
+            <Dependency>zlib-devel</Dependency>
+            <Dependency>kparts-devel</Dependency>
+            <Dependency>libX11-devel</Dependency>
+            <Dependency>kreport-devel</Dependency>
+            <Dependency>kcodecs-devel</Dependency>
+            <Dependency>karchive-devel</Dependency>
+            <Dependency>kproperty-devel</Dependency>
+            <Dependency>kdbusaddons-devel</Dependency>
+            <Dependency>kcalendarcore-devel</Dependency>
+            <Dependency>knotifications-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kio-devel</Dependency>
+            <Dependency versionFrom="6.22.0">ki18n-devel</Dependency>
+            <Dependency versionFrom="6.22.0">sonnet-devel</Dependency>
+            <Dependency versionFrom="6.10.1">qt6-svg-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kconfig-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kwallet-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kxmlgui-devel</Dependency>
+            <Dependency versionFrom="2.3.2">qca2-qt6-devel</Dependency>
+            <Dependency versionFrom="6.10.1">qt6-base-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kcmutils-devel</Dependency>
+            <Dependency versionFrom="3.0.1">kdiagram-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kholidays-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kdoctools-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kguiaddons-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kitemviews-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kcompletion-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kcoreaddons-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kiconthemes-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kjobwidgets-devel</Dependency>
+            <Dependency versionFrom="6.22.0">ktextwidgets-devel</Dependency>
+            <Dependency versionFrom="6.22.0">extra-cmake-modules</Dependency>
+            <Dependency versionFrom="6.22.0">knotifyconfig-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kwindowsystem-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kconfigwidgets-devel</Dependency>
+            <Dependency versionFrom="6.22.0">kwidgetsaddons-devel</Dependency>
+            <Dependency versionFrom="6.10.1">qt6-declarative-devel</Dependency>
         </BuildDependencies>
     </Source>
-
     <Package>
         <Name>calligra-plan</Name>
         <RuntimeDependencies>
-            <Dependency>kio5</Dependency>
-            <Dependency>ki18n5</Dependency>
-            <Dependency>kparts5</Dependency>
+            <Dependency>kio</Dependency>
+            <Dependency>ki18n</Dependency>
+            <Dependency>kparts</Dependency>
             <Dependency>libgcc</Dependency>
-            <Dependency>kconfig5</Dependency>
-            <Dependency>kwallet5</Dependency>
-            <Dependency>kxmlgui5</Dependency>
-            <Dependency>karchive5</Dependency>
-            <Dependency versionFrom="2.8.0">kdiagram5</Dependency>
-            <Dependency>kservice5</Dependency>
-            <Dependency>qt5-base</Dependency>
-            <Dependency>qca2-qt5</Dependency>
-            <Dependency>kholidays5</Dependency>
-            <Dependency>kitemviews5</Dependency>
-            <Dependency>kactivities5</Dependency>
-            <Dependency>kcompletion5</Dependency>
-            <Dependency>kcoreaddons5</Dependency>
-            <Dependency>kdbusaddons5</Dependency>
-            <Dependency>kiconthemes5</Dependency>
-            <Dependency>kjobwidgets5</Dependency>
-            <Dependency>ktextwidgets5</Dependency>
-            <Dependency>kwindowsystem5</Dependency>
-            <Dependency>qt5-x11extras</Dependency>
-            <Dependency>kconfigwidgets5</Dependency>
-            <Dependency>knotifications5</Dependency>
-            <Dependency>kwidgetsaddons5</Dependency>
+            <Dependency>kconfig</Dependency>
+            <Dependency>kwallet</Dependency>
+            <Dependency>kxmlgui</Dependency>
+            <Dependency>qca2-qt</Dependency>
+            <Dependency>karchive</Dependency>
+            <Dependency>kservice</Dependency>
+            <Dependency>qt6-base</Dependency>
+            <Dependency>kholidays</Dependency>
+            <Dependency>kitemviews</Dependency>
+            <Dependency>kcompletion</Dependency>
+            <Dependency>kcoreaddons</Dependency>
+            <Dependency>kdbusaddons</Dependency>
+            <Dependency>kiconthemes</Dependency>
+            <Dependency>kjobwidgets</Dependency>
+            <Dependency>ktextwidgets</Dependency>
+            <Dependency>kcalendarcore</Dependency>
+            <Dependency>kwindowsystem</Dependency>
+            <Dependency>kconfigwidgets</Dependency>
+            <Dependency>knotifications</Dependency>
+            <Dependency>kwidgetsaddons</Dependency>
+            <Dependency versionFrom="3.0.1">kdiagram</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="executable">/usr/bin</Path>
@@ -101,6 +94,13 @@
     </Package>
 
     <History>
+        <Update release="13">
+            <Date>2026-01-06</Date>
+            <Version>4.0.0</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Pisi Linux Community</Name>
+            <Email>admin@pisilinux.org</Email>
+        </Update>
         <Update release="12">
             <Date>2024-05-01</Date>
             <Version>3.3.0</Version>