diff --git a/dmlc-core b/dmlc-core
index dfd936526..81db53948 160000
--- a/dmlc-core
+++ b/dmlc-core
@@ -1 +1 @@
-Subproject commit dfd9365264a060a5096734b7d892e1858b6d2722
+Subproject commit 81db539486ce6525b31b971545edffee2754aced