diff --git a/crt/aws-c-auth b/crt/aws-c-auth
index f58e2028d..c394e3080 160000
--- a/crt/aws-c-auth
+++ b/crt/aws-c-auth
@@ -1 +1 @@
-Subproject commit f58e2028d183e0e889728249a5aa5097d58a5e5c
+Subproject commit c394e30808816a8edaab712e77f79f480c911d3a
diff --git a/crt/aws-c-common b/crt/aws-c-common
index eb4cff6d5..4f4a30002 160000
--- a/crt/aws-c-common
+++ b/crt/aws-c-common
@@ -1 +1 @@
-Subproject commit eb4cff6d50222a5352efd4f761563348bc1ecd1d
+Subproject commit 4f4a3000232fb8a106514c1f593d65fadb9b49ef
diff --git a/crt/aws-c-http b/crt/aws-c-http
index 9b50788b3..8d1fdf7cd 160000
--- a/crt/aws-c-http
+++ b/crt/aws-c-http
@@ -1 +1 @@
-Subproject commit 9b50788b3ded7fe97c53d9a66c533959c32a4b4f
+Subproject commit 8d1fdf7cd6d74bc6a90362f88ff6d435161bc52d
diff --git a/crt/aws-c-io b/crt/aws-c-io
index b629abed2..754ba168f 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit b629abed273cdc33e30e17c6a80edccc2a8daa67
+Subproject commit 754ba168fb6c6ad03087800f432411c7fdd45a52
diff --git a/crt/aws-c-mqtt b/crt/aws-c-mqtt
index 1ca6e70cf..6fa5b9c55 160000
--- a/crt/aws-c-mqtt
+++ b/crt/aws-c-mqtt
@@ -1 +1 @@
-Subproject commit 1ca6e70cf992c3f9b52d44531aa70ec89894b268
+Subproject commit 6fa5b9c552cc56fd25bcf478c8870ca1043d9f77
diff --git a/crt/aws-c-s3 b/crt/aws-c-s3
index ab2120fc7..2cd5c53f0 160000
--- a/crt/aws-c-s3
+++ b/crt/aws-c-s3
@@ -1 +1 @@
-Subproject commit ab2120fc708d201e780cdf20a621af8e20aef85d
+Subproject commit 2cd5c53f092261b3225aa12ff6c8324dcbb8c966