diff --git a/crt/aws-c-io b/crt/aws-c-io
index ddd9aa9d..67b07464 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit ddd9aa9d5bc55ccb6191ec354a96030e1be613ea
+Subproject commit 67b0746407deefd2f3963d9c191fda31cc45f985