diff --git a/pins.sh b/pins.sh
index aff178f..586be86 100644
--- a/pins.sh
+++ b/pins.sh
@@ -1,5 +1,7 @@
+# https://gitlab.gnome.org/GNOME/gtk-osx/-/commits/master
 # use latest commit (2023-08-20)
 PIN_GTK_OSX_COMMIT='a27e8ff6'
 
+# https://gitlab.gnome.org/GNOME/gtk-mac-bundler/-/commits/master
 # use latest commit (2023-08-17)
 PIN_GTK_MAC_BUNDLER_COMMIT='0a95b2d5'