diff --git a/src/cppgtfs b/src/cppgtfs
index 8c256e6..f5391e1 160000
--- a/src/cppgtfs
+++ b/src/cppgtfs
@@ -1 +1 @@
-Subproject commit 8c256e6e1ae8ed61639700e90802ccbefbcd4c34
+Subproject commit f5391e1567f4f21379f7b1fb6d82fc904a61c434