diff --git a/src/plugins/meson-templates/resources/src/Cargo-gtk4.toml b/src/plugins/meson-templates/resources/src/Cargo-gtk4.toml
index 9fde31f3773e09a00fcf016c1cb0719e48474826..e687985e8ebc117b8f07ed903c6c77bd3c3902a8 100644
--- a/src/plugins/meson-templates/resources/src/Cargo-gtk4.toml
+++ b/src/plugins/meson-templates/resources/src/Cargo-gtk4.toml
@@ -5,11 +5,11 @@ edition = "2021"
 
 [dependencies]
 gettext-rs = { version = "0.7", features = ["gettext-system"] }
-gtk = { version = "0.5", package = "gtk4" }
+gtk = { version = "0.6", package = "gtk4" }
 
 {{if is_adwaita}}
 [dependencies.adw]
 package = "libadwaita"
-version = "0.2"
+version = "0.3"
 features = ["v1_2"]
 {{end}}
diff --git a/src/plugins/meson-templates/resources/src/application-gtk4.rs b/src/plugins/meson-templates/resources/src/application-gtk4.rs
index 7824eb733dcb2f59ff7f8b98b190e9164f921137..78eb9865e54ce174b8a294d68b21e0bd07b56648 100644
--- a/src/plugins/meson-templates/resources/src/application-gtk4.rs
+++ b/src/plugins/meson-templates/resources/src/application-gtk4.rs
@@ -27,7 +27,7 @@ mod imp {
     impl ObjectImpl for {{PreFix}}Application {
         fn constructed(&self) {
             self.parent_constructed();
-            let obj = self.instance();
+            let obj = self.obj();
             obj.setup_gactions();
             obj.set_accels_for_action("app.quit", &["<primary>q"]);
         }
@@ -39,7 +39,7 @@ mod imp {
         // tries to launch a "second instance" of the application. When they try
         // to do that, we'll just present any existing window.
         fn activate(&self) {
-            let application = self.instance();
+            let application = self.obj();
             // Get the current window or create one if necessary
             let window = if let Some(window) = application.active_window() {
                 window
@@ -68,7 +68,10 @@ glib::wrapper! {
 
 impl {{PreFix}}Application {
     pub fn new(application_id: &str, flags: &gio::ApplicationFlags) -> Self {
-        glib::Object::new(&[("application-id", &application_id), ("flags", flags)])
+        glib::Object::builder()
+            .property("application-id", application_id)
+            .property("flags", flags)
+            .build()
     }
 
     fn setup_gactions(&self) {
@@ -78,7 +81,7 @@ impl {{PreFix}}Application {
         let about_action = gio::ActionEntry::builder("about")
             .activate(move |app: &Self, _, _| app.show_about())
             .build();
-        self.add_action_entries([quit_action, about_action]).unwrap();
+        self.add_action_entries([quit_action, about_action]);
     }
 
     fn show_about(&self) {
@@ -90,7 +93,7 @@ impl {{PreFix}}Application {
             .application_icon("{{appid}}")
             .developer_name("{{author}}")
             .version(VERSION)
-            .developers(vec!["{{author}}".into()])
+            .developers(vec!["{{author}}"])
             .copyright("© {{year}} {{author}}")
             .build();
 {{else}}
@@ -100,7 +103,7 @@ impl {{PreFix}}Application {
             .program_name("{{name}}")
             .logo_icon_name("{{appid}}")
             .version(VERSION)
-            .authors(vec!["{{author}}".into()])
+            .authors(vec!["{{author}}"])
             .copyright("© {{year}} {{author}}")
             .build();
 {{end}}
diff --git a/src/plugins/meson-templates/resources/src/main-gtk4.rs b/src/plugins/meson-templates/resources/src/main-gtk4.rs
index 25e5dab9999488a9b8abe9e6671bc2c42d849e02..3d98cdfb859f514cc70239c599c93c7827370933 100644
--- a/src/plugins/meson-templates/resources/src/main-gtk4.rs
+++ b/src/plugins/meson-templates/resources/src/main-gtk4.rs
@@ -9,10 +9,10 @@ use self::window::{{PreFix}}Window;
 
 use config::{GETTEXT_PACKAGE, LOCALEDIR, PKGDATADIR};
 use gettextrs::{bind_textdomain_codeset, bindtextdomain, textdomain};
-use gtk::gio;
+use gtk::{gio, glib};
 use gtk::prelude::*;
 
-fn main() {
+fn main() -> glib::ExitCode {
     // Set up gettext translations
     bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR).expect("Unable to bind the text domain");
     bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8")
@@ -33,5 +33,5 @@ fn main() {
     // exits. Upon return, we have our exit code to return to the shell. (This
     // is the code you see when you do `echo $?` after running a command in a
     // terminal.
-    std::process::exit(app.run());
+    app.run()
 }
diff --git a/src/plugins/meson-templates/resources/src/window-gtk4.rs b/src/plugins/meson-templates/resources/src/window-gtk4.rs
index 1311e9cff32d1d54f020d05777487491f2c7d899..2e8535b0e212916df9b2aae7934b87bf0474d58b 100644
--- a/src/plugins/meson-templates/resources/src/window-gtk4.rs
+++ b/src/plugins/meson-templates/resources/src/window-gtk4.rs
@@ -53,6 +53,8 @@ glib::wrapper! {
 
 impl {{PreFix}}Window {
     pub fn new<P: glib::IsA<gtk::Application>>(application: &P) -> Self {
-        glib::Object::new(&[("application", application)])
+        glib::Object::builder()
+            .property("application", application)
+            .build()
     }
 }