--- pynicotine/gtkgui/__init__.py	2024-10-16 00:20:31.000000000 +0800
+++ pynicotine/gtkgui/__init__.py	2024-10-30 17:23:27.000000000 +0800
@@ -25,7 +25,7 @@
 def get_default_gtk_version():
 
     if sys.platform in {"darwin", "win32"}:
-        return "4"
+        return "3"
 
     try:
         from gi.repository import GLib
@@ -54,7 +54,7 @@
     except ModuleNotFoundError:
         pass
 
-    return "4"
+    return "3"
 
 
 def check_gtk_version(gtk_api_version):