diff --git a/crt/aws-c-cal b/crt/aws-c-cal
index 0db9df8..b0219ca 160000
--- a/crt/aws-c-cal
+++ b/crt/aws-c-cal
@@ -1 +1 @@
-Subproject commit 0db9df884f74f2455f3c58949fd8c8b74247422d
+Subproject commit b0219caef2c2261daeac20d617cbdca5e13d8d36
diff --git a/crt/aws-c-io b/crt/aws-c-io
index 350a478..5471955 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit 350a4781e4932e5a8f03dc33cb7b08ed6da76cd5
+Subproject commit 54719551837b96533f659470c0f016814ce00d2f