diff --git a/core_io b/core_io
index a4ddc38063ddb2f2ff1b17f772b8b50f7f3baecd..8f253772c98389e8394eca99ba7ac72addf79dba 160000
--- a/core_io
+++ b/core_io
@@ -1 +1 @@
-Subproject commit a4ddc38063ddb2f2ff1b17f772b8b50f7f3baecd
+Subproject commit 8f253772c98389e8394eca99ba7ac72addf79dba