diff --git a/ppm b/ppm
index 957acbd90..7dfd9ca8c 160000
--- a/ppm
+++ b/ppm
@@ -1 +1 @@
-Subproject commit 957acbd90cfc9f361c183b3c073b1886b73836f5
+Subproject commit 7dfd9ca8cf877391fc6ef1d5238f89e348df1508