diff --git a/MaxMind-DB-Reader-php b/MaxMind-DB-Reader-php
index 4cc387e..b9bd704 160000
--- a/MaxMind-DB-Reader-php
+++ b/MaxMind-DB-Reader-php
@@ -1 +1 @@
-Subproject commit 4cc387e9c80d7120db22c547f9702356eb07576f
+Subproject commit b9bd70423cdbc138d996174fb8bc6b48dac50814