diff --git a/postgis-old-upgrade b/postgis-old-upgrade
index 52b30bf..15b5c1f 160000
--- a/postgis-old-upgrade
+++ b/postgis-old-upgrade
@@ -1 +1 @@
-Subproject commit 52b30bf3d9bdb6e068d978be5e76a44df80d4bb1
+Subproject commit 15b5c1f45012c0bfeed6ab27fa8375a9431ac4b7