diff --git a/crt/aws-c-io b/crt/aws-c-io
index 9b8d716b3..a17f423f0 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit 9b8d716b3b12de435fbabed834ef435fd3f153c2
+Subproject commit a17f423f01feb4f55f7d8b8c0ecf1c35ae93bf8a