diff --git a/manifest b/manifest
index 2e406625..8f83cd2e 100644
--- a/manifest
+++ b/manifest
@@ -273,6 +273,9 @@ export FILES_TO_DELETE="\
 "
 
 postinstallhook() {
+	# Pyglet downgrade
+	pacman --noconfirm -U --overwrite '*' /extra_pkgs/python-pyglet-2.0.15-1-any.pkg.tar.zst
+	rm -rf /var/cache/pacman/pkg
 	# Add sudo permissions
 	sed -i '/%wheel ALL=(ALL:ALL) ALL/s/^# //g' /etc/sudoers
 	echo "${USERNAME} ALL=(ALL) NOPASSWD: /usr/bin/dmidecode -t 11