diff --git a/rssguard-3.5.7-unbundle_qtsinglecoreapplication.patch b/rssguard-3.5.7-unbundle_qtsinglecoreapplication.patch
deleted file mode 100644
index a41d7df..0000000
--- a/rssguard-3.5.7-unbundle_qtsinglecoreapplication.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-diff -up rssguard-3.5.7/rssguard.pro.unbundle_qtsinglecoreapplication rssguard-3.5.7/rssguard.pro
---- rssguard-3.5.7/rssguard.pro.unbundle_qtsinglecoreapplication	2019-04-04 09:30:57.000000000 +0200
-+++ rssguard-3.5.7/rssguard.pro	2019-04-04 11:23:05.116453958 +0200
-@@ -142,6 +142,8 @@ message(rssguard: lrelease executable na
- 
- QT *= core gui widgets sql network xml
- 
-+CONFIG *= qtsingleapplication
-+
- CONFIG *= c++1z warn_on
- CONFIG -=  debug_and_release
- DEFINES *= QT_USE_QSTRINGBUILDER QT_USE_FAST_CONCATENATION QT_USE_FAST_OPERATOR_PLUS UNICODE _UNICODE
-@@ -307,10 +309,6 @@ HEADERS +=  src/core/feeddownloader.h \
-             src/network-web/oauth2service.h \
-             src/network-web/silentnetworkaccessmanager.h \
-             src/network-web/webfactory.h \
--            src/qtsingleapplication/qtlocalpeer.h \
--            src/qtsingleapplication/qtlockedfile.h \
--            src/qtsingleapplication/qtsingleapplication.h \
--            src/qtsingleapplication/qtsinglecoreapplication.h \
-             src/services/abstract/accountcheckmodel.h \
-             src/services/abstract/cacheforserviceroot.h \
-             src/services/abstract/category.h \
-@@ -446,10 +444,6 @@ SOURCES +=  src/core/feeddownloader.cpp
-             src/network-web/oauth2service.cpp \
-             src/network-web/silentnetworkaccessmanager.cpp \
-             src/network-web/webfactory.cpp \
--            src/qtsingleapplication/qtlocalpeer.cpp \
--            src/qtsingleapplication/qtlockedfile.cpp \
--            src/qtsingleapplication/qtsingleapplication.cpp \
--            src/qtsingleapplication/qtsinglecoreapplication.cpp \
-             src/services/abstract/accountcheckmodel.cpp \
-             src/services/abstract/cacheforserviceroot.cpp \
-             src/services/abstract/category.cpp \
-diff -up rssguard-3.5.7/src/miscellaneous/application.cpp.unbundle_qtsinglecoreapplication rssguard-3.5.7/src/miscellaneous/application.cpp
---- rssguard-3.5.7/src/miscellaneous/application.cpp.unbundle_qtsinglecoreapplication	2019-04-04 09:30:57.000000000 +0200
-+++ rssguard-3.5.7/src/miscellaneous/application.cpp	2019-04-04 11:22:11.202530164 +0200
-@@ -397,8 +397,6 @@ void Application::onAboutToQuit() {
- 
-   // Now, we can check if application should just quit or restart itself.
-   if (m_shouldRestart) {
--    finish();
--    qDebug("Killing local peer connection to allow another instance to start.");
- 
-     // TODO: Start RSS Guard with sleep before it cross-platform way if possible.
-     // sleep 5 && "<rssguard-start>".
-diff -up rssguard-3.5.7/src/miscellaneous/application.h.unbundle_qtsinglecoreapplication rssguard-3.5.7/src/miscellaneous/application.h
---- rssguard-3.5.7/src/miscellaneous/application.h.unbundle_qtsinglecoreapplication	2019-04-04 09:30:57.000000000 +0200
-+++ rssguard-3.5.7/src/miscellaneous/application.h	2019-04-04 11:22:11.202530164 +0200
-@@ -3,7 +3,7 @@
- #ifndef APPLICATION_H
- #define APPLICATION_H
- 
--#include "qtsingleapplication/qtsingleapplication.h"
-+#include <QtSingleApplication>
- 
- #include "core/feeddownloader.h"
- #include "definitions/definitions.h"
diff --git a/rssguard-3.5.9-unbundle_qtsinglecoreapplication.patch b/rssguard-3.5.9-unbundle_qtsinglecoreapplication.patch
new file mode 100644
index 0000000..7168944
--- /dev/null
+++ b/rssguard-3.5.9-unbundle_qtsinglecoreapplication.patch
@@ -0,0 +1,58 @@
+diff -up rssguard-3.5.9/rssguard.pro.unbundle rssguard-3.5.9/rssguard.pro
+--- rssguard-3.5.9/rssguard.pro.unbundle	2019-06-04 13:16:48.000000000 +0200
++++ rssguard-3.5.9/rssguard.pro	2019-06-09 23:56:30.257819194 +0200
+@@ -142,6 +142,8 @@ message(rssguard: lrelease executable na
+ 
+ QT *= core gui widgets sql network xml
+ 
++CONFIG *= qtsingleapplication
++
+ CONFIG *= c++1z warn_on
+ CONFIG -=  debug_and_release
+ DEFINES *= QT_USE_QSTRINGBUILDER QT_USE_FAST_CONCATENATION QT_USE_FAST_OPERATOR_PLUS UNICODE _UNICODE
+@@ -308,10 +310,6 @@ HEADERS += src/core/feeddownloader.h \
+            src/network-web/oauth2service.h \
+            src/network-web/silentnetworkaccessmanager.h \
+            src/network-web/webfactory.h \
+-           src/qtsingleapplication/qtlocalpeer.h \
+-           src/qtsingleapplication/qtlockedfile.h \
+-           src/qtsingleapplication/qtsingleapplication.h \
+-           src/qtsingleapplication/qtsinglecoreapplication.h \
+            src/services/abstract/accountcheckmodel.h \
+            src/services/abstract/cacheforserviceroot.h \
+            src/services/abstract/category.h \
+@@ -448,10 +446,6 @@ SOURCES += src/core/feeddownloader.cpp \
+            src/network-web/oauth2service.cpp \
+            src/network-web/silentnetworkaccessmanager.cpp \
+            src/network-web/webfactory.cpp \
+-           src/qtsingleapplication/qtlocalpeer.cpp \
+-           src/qtsingleapplication/qtlockedfile.cpp \
+-           src/qtsingleapplication/qtsingleapplication.cpp \
+-           src/qtsingleapplication/qtsinglecoreapplication.cpp \
+            src/services/abstract/accountcheckmodel.cpp \
+            src/services/abstract/cacheforserviceroot.cpp \
+            src/services/abstract/category.cpp \
+diff -up rssguard-3.5.9/src/miscellaneous/application.cpp.unbundle rssguard-3.5.9/src/miscellaneous/application.cpp
+--- rssguard-3.5.9/src/miscellaneous/application.cpp.unbundle	2019-06-04 13:16:48.000000000 +0200
++++ rssguard-3.5.9/src/miscellaneous/application.cpp	2019-06-09 23:54:49.961946446 +0200
+@@ -397,8 +397,6 @@ void Application::onAboutToQuit() {
+ 
+   // Now, we can check if application should just quit or restart itself.
+   if (m_shouldRestart) {
+-    finish();
+-    qDebug("Killing local peer connection to allow another instance to start.");
+ 
+     // TODO: Start RSS Guard with sleep before it cross-platform way if possible.
+     // sleep 5 && "<rssguard-start>".
+diff -up rssguard-3.5.9/src/miscellaneous/application.h.unbundle rssguard-3.5.9/src/miscellaneous/application.h
+--- rssguard-3.5.9/src/miscellaneous/application.h.unbundle	2019-06-04 13:16:48.000000000 +0200
++++ rssguard-3.5.9/src/miscellaneous/application.h	2019-06-09 23:54:49.961946446 +0200
+@@ -3,7 +3,7 @@
+ #ifndef APPLICATION_H
+ #define APPLICATION_H
+ 
+-#include "qtsingleapplication/qtsingleapplication.h"
++#include <QtSingleApplication>
+ 
+ #include "core/feeddownloader.h"
+ #include "definitions/definitions.h"
diff --git a/rssguard.spec b/rssguard.spec
index 0954c3d..14bd46a 100644
--- a/rssguard.spec
+++ b/rssguard.spec
@@ -11,7 +11,7 @@ License:        GPLv3+ and BSD and AGPLv3
 URL:            https://github.com/martinrotter/rssguard
 Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
 
-Patch0:         rssguard-3.5.7-unbundle_qtsinglecoreapplication.patch
+Patch0:         rssguard-3.5.9-unbundle_qtsinglecoreapplication.patch
 
 # Qt5WebEngine is only available on those architectures
 ExclusiveArch:  %{qt5_qtwebengine_arches}