diff --git a/osx/launcher.sh b/osx/launcher.sh
index 130888c9..732f9866 100755
--- a/osx/launcher.sh
+++ b/osx/launcher.sh
@@ -30,9 +30,10 @@ export GTK_DATA_PREFIX="$bundle_res"
 export GTK_EXE_PREFIX="$bundle_res"
 export GTK_PATH="$bundle_res"
 
-export GTK2_RC_FILES="$bundle_etc/gtk-2.0/gtkrc"
-export GTK_IM_MODULE_FILE="$bundle_etc/gtk-2.0/gtk.immodules"
-export GDK_PIXBUF_MODULE_FILE="$bundle_etc/gtk-2.0/gdk-pixbuf.loaders"
+export GTK_THEME="Mac"
+export GTK_KEY_THEME="Mac"
+export GTK_IM_MODULE_FILE="$bundle_etc/gtk-3.0/gtk.immodules"
+export GDK_PIXBUF_MODULE_FILE="$bundle_etc/gtk-3.0/gdk-pixbuf.loaders"
 export PANGO_LIBDIR="$bundle_lib"
 export PANGO_SYSCONFDIR="$bundle_etc"
 
diff --git a/osx/settings.ini b/osx/settings.ini
new file mode 100644
index 00000000..b81bb04d
--- /dev/null
+++ b/osx/settings.ini
@@ -0,0 +1,5 @@
+[Settings]
+gtk-theme-name=Mac
+gtk-key-theme-name=Mac
+gtk-menu-images=0
+gtk-button-images=0
diff --git a/osx/zoitechat.bundle b/osx/zoitechat.bundle
index 81145fb8..af933ed1 100644
--- a/osx/zoitechat.bundle
+++ b/osx/zoitechat.bundle
@@ -8,7 +8,7 @@
 
     <run-install-name-tool/>
     <launcher-script>${project}/launcher.sh</launcher-script >
-    <gtk>gtk+-2.0</gtk>
+    <gtk>gtk+-3.0</gtk>
   </meta>
 
   <plist>${project}/Info.plist</plist>
@@ -47,18 +47,18 @@
     ${prefix}/lib/pango/${pkg:pango:pango_module_version}/modules/
   </binary>
   <data>
-    ${prefix}/share/themes/Mac/gtk-2.0-key/gtkrc
+    ${prefix}/share/themes/Mac/gtk-3.0/gtk-keys.css
   </data>
 
-  <translations name="gtk20">
+  <translations name="gtk30">
     ${prefix}/share/locale
   </translations>
   <translations name="zoitechat">
     ${prefix}/share/locale
   </translations>
 
-  <data dest="${bundle}/Contents/Resources/etc/${gtkdir}/gtkrc">
-    ${project}/gtkrc
+  <data dest="${bundle}/Contents/Resources/etc/${gtkdir}/settings.ini">
+    ${project}/settings.ini
   </data>
 
   <data dest="${bundle}/Contents/Resources">