diff --git a/desktop/kde/applications/akonadi-calendar-tools/files/qt5.patch b/desktop/kde/applications/akonadi-calendar-tools/files/qt5.patch
new file mode 100644
index 0000000000..ffe62b987d
--- /dev/null
+++ b/desktop/kde/applications/akonadi-calendar-tools/files/qt5.patch
@@ -0,0 +1,12 @@
+diff -Nuar a/CMakeLists.txt b/CMakeLists.txt
+--- a/CMakeLists.txt	2017-12-08 04:02:08.000000000 +0300
++++ b/CMakeLists.txt	2017-12-17 11:30:46.413624475 +0300
+@@ -46,7 +46,7 @@
+ set(KDEPIM_LIB_VERSION "${KDEPIM_VERSION_NUMBER}")
+ set(KDEPIM_LIB_SOVERSION "5")
+ 
+-set(QT_REQUIRED_VERSION "5.8.0")
++set(QT_REQUIRED_VERSION "5.7.1")
+ find_package(Qt5 ${QT_REQUIRED_VERSION} CONFIG REQUIRED Widgets)
+ 
+ 
diff --git a/desktop/kde/applications/akonadi-calendar-tools/pspec.xml b/desktop/kde/applications/akonadi-calendar-tools/pspec.xml
index 6457225822..b63c109e72 100644
--- a/desktop/kde/applications/akonadi-calendar-tools/pspec.xml
+++ b/desktop/kde/applications/akonadi-calendar-tools/pspec.xml
@@ -11,7 +11,7 @@
         <License>GPLv2</License>
         <Summary>CLI tools to manage akonadi calendars</Summary>
         <Description>CLI tools to manage akonadi calendars</Description>
-        <Archive sha1sum="811d168881e6c6bec02ba6942c1dae37d362cddf" type="tarxz">http://download.kde.org/stable/applications/17.08.3/src/akonadi-calendar-tools-17.08.3.tar.xz</Archive>
+        <Archive sha1sum="d2566cf654bc7d871e81aff03bf261727daf5110" type="tarxz">http://download.kde.org/stable/applications/17.12.0/src/akonadi-calendar-tools-17.12.0.tar.xz</Archive>
         <BuildDependencies>
             <Dependency>boost-devel</Dependency>
             <Dependency>akonadi-devel</Dependency>
@@ -36,6 +36,9 @@
             <Dependency>kmime-devel</Dependency>
             <Dependency>kidentitymanagement-devel</Dependency>
         </BuildDependencies>
+        <Patches>
+            <Patch>qt5.patch</Patch>
+        </Patches>
     </Source>
 
     <Package>
@@ -63,6 +66,13 @@
     </Package>
 
     <History>
+        <Update release="7">
+            <Date>2017-12-15</Date>
+            <Version>17.12.0</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Mustafa Cinasal</Name>
+            <Email>muscnsl@gmail.com</Email>
+        </Update>
         <Update release="6">
             <Date>2017-11-11</Date>
             <Version>17.08.3</Version>