diff --git a/.github/workflows/quality.yml b/.github/workflows/quality.yml
index 6762a68..fa58715 100644
--- a/.github/workflows/quality.yml
+++ b/.github/workflows/quality.yml
@@ -25,7 +25,7 @@ jobs:
           override: true
 
       - name: Install Gtk
-        run: sudo apt install -y libgtk-3-dev libasound2-dev
+        run: sudo apt-get update; sudo apt install -y libgtk-3-dev libasound2-dev
 
       - name: Check the format
         run: cargo fmt --all -- --check
diff --git a/czkawka_gui/czkawka.glade b/czkawka_gui/czkawka.glade
index a6f04bc..b2298cc 100644
--- a/czkawka_gui/czkawka.glade
+++ b/czkawka_gui/czkawka.glade
@@ -2257,7 +2257,7 @@ This program is free to use and will always be.
                   <object class="GtkImage">
                     <property name="visible">True</property>
                     <property name="can-focus">False</property>
-                    <property name="icon-name">settings-app-symbolic</property>
+                    <property name="icon-name">applications-engineering</property>
                   </object>
                 </child>
               </object>
diff --git a/czkawka_gui/src/connect_header_buttons.rs b/czkawka_gui/src/connect_header_buttons.rs
index b142494..a33936b 100644
--- a/czkawka_gui/src/connect_header_buttons.rs
+++ b/czkawka_gui/src/connect_header_buttons.rs
@@ -7,8 +7,7 @@ pub fn connect_button_about(gui_data: &GuiData) {
     let about_dialog = gui_data.about.about_dialog.clone();
     let button_app_info = gui_data.header.button_app_info.clone();
     button_app_info.connect_clicked(move |_| {
-        about_dialog.set_position(WindowPosition::Center); // Not working
-
+        about_dialog.set_position(WindowPosition::CenterAlways);
         about_dialog.show();
         let response = about_dialog.run();
         if response != ResponseType::None {
diff --git a/czkawka_gui/src/connect_settings.rs b/czkawka_gui/src/connect_settings.rs
index ce126eb..bac6f95 100644
--- a/czkawka_gui/src/connect_settings.rs
+++ b/czkawka_gui/src/connect_settings.rs
@@ -2,6 +2,7 @@ extern crate gtk;
 use crate::gui_data::GuiData;
 use crate::saving_loading::{load_configuration, reset_configuration, save_configuration};
 use gtk::prelude::*;
+use gtk::WindowPosition;
 
 pub fn connect_settings(gui_data: &GuiData) {
     // Connect button settings
@@ -12,6 +13,7 @@ pub fn connect_settings(gui_data: &GuiData) {
         button_settings.connect_clicked(move |_| {
             window_main.set_sensitive(false);
             window_settings.show();
+            window_settings.set_position(WindowPosition::CenterAlways);
         });
 
         let window_main = gui_data.window_main.clone();
diff --git a/czkawka_gui/src/gui_about.rs b/czkawka_gui/src/gui_about.rs
index fea9c9f..9160985 100644
--- a/czkawka_gui/src/gui_about.rs
+++ b/czkawka_gui/src/gui_about.rs
@@ -1,4 +1,5 @@
 use gtk::prelude::*;
+use gtk::WindowPosition;
 
 #[derive(Clone)]
 pub struct GuiAbout {
@@ -12,6 +13,7 @@ pub struct GuiAbout {
 impl GuiAbout {
     pub fn create_from_builder(builder: &gtk::Builder) -> Self {
         let about_dialog: gtk::AboutDialog = builder.get_object("about_dialog").unwrap();
+        about_dialog.set_position(WindowPosition::CenterAlways);
 
         let button_repository: gtk::Button = builder.get_object("button_repository").unwrap();
         let button_donation: gtk::Button = builder.get_object("button_donation").unwrap();
diff --git a/czkawka_gui/src/gui_data.rs b/czkawka_gui/src/gui_data.rs
index 5f10913..e1f2aab 100644
--- a/czkawka_gui/src/gui_data.rs
+++ b/czkawka_gui/src/gui_data.rs
@@ -21,7 +21,7 @@ use czkawka_core::similar_images::SimilarImages;
 use czkawka_core::temporary::Temporary;
 use czkawka_core::zeroed::ZeroedFiles;
 use gtk::prelude::*;
-use gtk::Builder;
+use gtk::{Builder, WindowPosition};
 use std::cell::RefCell;
 use std::collections::HashMap;
 use std::rc::Rc;
@@ -87,6 +87,7 @@ impl GuiData {
         let window_main: gtk::Window = builder.get_object("window_main").unwrap();
         window_main.show_all();
         window_main.set_title("Czkawka");
+        window_main.set_position(WindowPosition::CenterAlways);
 
         let main_notebook = GuiMainNotebook::create_from_builder(&builder);
         let upper_notebook = GuiUpperNotebook::create_from_builder(&builder);
diff --git a/czkawka_gui/src/gui_settings.rs b/czkawka_gui/src/gui_settings.rs
index e6218b4..4b63236 100644
--- a/czkawka_gui/src/gui_settings.rs
+++ b/czkawka_gui/src/gui_settings.rs
@@ -1,4 +1,5 @@
 use gtk::prelude::*;
+use gtk::WindowPosition;
 
 #[derive(Clone)]
 pub struct GuiSettings {
@@ -29,6 +30,7 @@ pub struct GuiSettings {
 impl GuiSettings {
     pub fn create_from_builder(builder: &gtk::Builder) -> Self {
         let window_settings: gtk::Window = builder.get_object("window_settings").unwrap();
+        window_settings.set_position(WindowPosition::CenterAlways);
 
         // General
         let check_button_settings_save_at_exit: gtk::CheckButton = builder.get_object("check_button_settings_save_at_exit").unwrap();