diff --git a/safeeyes/platform/io.github.slgobinath.SafeEyes.desktop b/safeeyes/platform/io.github.slgobinath.SafeEyes.desktop
index 5d88bb9..2c876b9 100644
--- a/safeeyes/platform/io.github.slgobinath.SafeEyes.desktop
+++ b/safeeyes/platform/io.github.slgobinath.SafeEyes.desktop
@@ -24,7 +24,7 @@ Comment[ta]=உங்கள் கண்களை சோர்வடையாத
 Comment[tr]=Gözünüzü yorgunluğa karşı koruyun
 Comment[uk]=Захистіть свої очі від втоми
 Comment[vi]=Bảo vệ đôi mắt của bạn khỏi sự mệt mỏi
-Exec=env GDK_BACKEND=x11 safeeyes
+Exec=safeeyes
 Icon=io.github.slgobinath.SafeEyes
 Terminal=false
 Type=Application
diff --git a/safeeyes/plugins/donotdisturb/plugin.py b/safeeyes/plugins/donotdisturb/plugin.py
index 5d17990..079af87 100644
--- a/safeeyes/plugins/donotdisturb/plugin.py
+++ b/safeeyes/plugins/donotdisturb/plugin.py
@@ -27,7 +27,7 @@ import re
 import subprocess
 
 import gi
-gi.require_version('Gdk', '3.0')
+gi.require_version('Gdk', '4.0')
 from gi.repository import Gdk
 from gi.repository import GdkX11  # noqa F401
 from safeeyes import utility
diff --git a/safeeyes/plugins/mediacontrol/plugin.py b/safeeyes/plugins/mediacontrol/plugin.py
index df471cd..f09847b 100644
--- a/safeeyes/plugins/mediacontrol/plugin.py
+++ b/safeeyes/plugins/mediacontrol/plugin.py
@@ -26,7 +26,7 @@ import dbus
 import re
 import gi
 from safeeyes.model import TrayAction
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk
 
 tray_icon_path = None
diff --git a/safeeyes/plugins/screensaver/plugin.py b/safeeyes/plugins/screensaver/plugin.py
index 0165b63..22b7828 100644
--- a/safeeyes/plugins/screensaver/plugin.py
+++ b/safeeyes/plugins/screensaver/plugin.py
@@ -26,7 +26,7 @@ import os
 
 from safeeyes import utility
 from safeeyes.model import TrayAction
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk
 
 context = None
diff --git a/safeeyes/plugins/trayicon/plugin.py b/safeeyes/plugins/trayicon/plugin.py
index f8ba1e3..a8fe3d4 100644
--- a/safeeyes/plugins/trayicon/plugin.py
+++ b/safeeyes/plugins/trayicon/plugin.py
@@ -19,7 +19,7 @@
 import datetime
 from safeeyes.model import BreakType
 import gi
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 try:
     gi.require_version('AppIndicator3', '0.1')
     from gi.repository import AppIndicator3 as appindicator
diff --git a/safeeyes/safeeyes.py b/safeeyes/safeeyes.py
index 883d659..7d487f1 100644
--- a/safeeyes/safeeyes.py
+++ b/safeeyes/safeeyes.py
@@ -37,7 +37,7 @@ from safeeyes.plugin_manager import PluginManager
 from safeeyes.core import SafeEyesCore
 from safeeyes.ui.settings_dialog import SettingsDialog
 
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk, Gio
 
 SAFE_EYES_VERSION = "2.1.6"
diff --git a/safeeyes/ui/break_screen.py b/safeeyes/ui/break_screen.py
index cce0674..1c4b237 100644
--- a/safeeyes/ui/break_screen.py
+++ b/safeeyes/ui/break_screen.py
@@ -27,7 +27,7 @@ from safeeyes import utility
 from Xlib.display import Display
 from Xlib.display import X
 
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gdk
 from gi.repository import GLib
 from gi.repository import Gtk
diff --git a/safeeyes/ui/settings_dialog.py b/safeeyes/ui/settings_dialog.py
index f4bc4e3..b106738 100644
--- a/safeeyes/ui/settings_dialog.py
+++ b/safeeyes/ui/settings_dialog.py
@@ -23,7 +23,7 @@ import gi
 from safeeyes import utility
 from safeeyes.model import Config
 
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk
 from gi.repository import GdkPixbuf
 
diff --git a/safeeyes/utility.py b/safeeyes/utility.py
index 3976140..a33c3d7 100644
--- a/safeeyes/utility.py
+++ b/safeeyes/utility.py
@@ -39,12 +39,12 @@ from pathlib import Path
 import babel.core
 import babel.dates
 import gi
-gi.require_version('Gtk', '3.0')
+gi.require_version('Gtk', '4.0')
 from gi.repository import Gtk
 from gi.repository import GLib
 from gi.repository import GdkPixbuf
 
-gi.require_version('Gdk', '3.0')
+gi.require_version('Gdk', '4.0')
 
 BIN_DIRECTORY = os.path.dirname(os.path.realpath(__file__))
 HOME_DIRECTORY = os.environ.get('HOME') or os.path.expanduser('~')