diff --git a/crt/aws-c-cal b/crt/aws-c-cal
index 9edd8eac2..8aa2a48a0 160000
--- a/crt/aws-c-cal
+++ b/crt/aws-c-cal
@@ -1 +1 @@
-Subproject commit 9edd8eac2b21ca6a04535b91d60d361c2f1bb60f
+Subproject commit 8aa2a48a09f93c65d4cf06388e143a6584de6321
diff --git a/crt/aws-c-common b/crt/aws-c-common
index 3c69b871d..3a5e638ae 160000
--- a/crt/aws-c-common
+++ b/crt/aws-c-common
@@ -1 +1 @@
-Subproject commit 3c69b871dfa1815231802febf1bb6899f84cccdb
+Subproject commit 3a5e638aee99c9f1d65696f7df8c4e5d3dc5805c
diff --git a/crt/aws-c-io b/crt/aws-c-io
index 54350963b..28e4eb351 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit 54350963b64dfc6c4b0ea623b08aa252aae3d7d7
+Subproject commit 28e4eb351a536daf1627bf69279e50671f7729b5
diff --git a/crt/aws-c-mqtt b/crt/aws-c-mqtt
index 2ef9605ec..e35b9ca3f 160000
--- a/crt/aws-c-mqtt
+++ b/crt/aws-c-mqtt
@@ -1 +1 @@
-Subproject commit 2ef9605ec9c50bea3f921e08022ddd57eed70901
+Subproject commit e35b9ca3f9fcbf1a972c831c5e79046ce56959d1
diff --git a/crt/aws-c-s3 b/crt/aws-c-s3
index 1f29ef887..226c3e693 160000
--- a/crt/aws-c-s3
+++ b/crt/aws-c-s3
@@ -1 +1 @@
-Subproject commit 1f29ef8871a27dc8b90325418780659bac534d71
+Subproject commit 226c3e6937e3d5f7db9e10651f7bd20575e98187
diff --git a/crt/aws-c-sdkutils b/crt/aws-c-sdkutils
index cb14fea36..a1cc19f53 160000
--- a/crt/aws-c-sdkutils
+++ b/crt/aws-c-sdkutils
@@ -1 +1 @@
-Subproject commit cb14fea362c82c995eebd34e2e96590ab4e0ed58
+Subproject commit a1cc19f53b63658f1b1400b36f199eafeeb895a6
diff --git a/crt/s2n b/crt/s2n
index 66b1c94d1..853d1943b 160000
--- a/crt/s2n
+++ b/crt/s2n
@@ -1 +1 @@
-Subproject commit 66b1c94d1dfc99b237427cbde230eca63bb8b89c
+Subproject commit 853d1943bbbd7f782a159e77830cdaaf520d68ed