diff --git a/lib/CPP_PTB b/lib/CPP_PTB
index f27cbc1..0e9bd69 160000
--- a/lib/CPP_PTB
+++ b/lib/CPP_PTB
@@ -1 +1 @@
-Subproject commit f27cbc1d7cc345ecff8672fa11cc2fe7d1ca9e1a
+Subproject commit 0e9bd693f1f8520cd79f1e57513e31b8ed96649f