diff --git a/crt/aws-c-http b/crt/aws-c-http
index 27efc273f..f800427e2 160000
--- a/crt/aws-c-http
+++ b/crt/aws-c-http
@@ -1 +1 @@
-Subproject commit 27efc273f228306031c7345de8acaeee956db765
+Subproject commit f800427e2e2878cf8b36f602583758769a7b3b4a
diff --git a/crt/aws-c-io b/crt/aws-c-io
index 1f9a08502..0642c6842 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit 1f9a085027c5e0f3e0c0e2a9fbe685f12af8105d
+Subproject commit 0642c68425f126e833fcf91bdc53dfc32366d0ba
diff --git a/crt/aws-c-s3 b/crt/aws-c-s3
index 61c5282da..bc9c8b200 160000
--- a/crt/aws-c-s3
+++ b/crt/aws-c-s3
@@ -1 +1 @@
-Subproject commit 61c5282da191ccdb7f6460800c7bfc4d013ca8b4
+Subproject commit bc9c8b20030beb854b16eef05b20abbb55f15df6
diff --git a/crt/aws-checksums b/crt/aws-checksums
index a5b0e7f00..321b80555 160000
--- a/crt/aws-checksums
+++ b/crt/aws-checksums
@@ -1 +1 @@
-Subproject commit a5b0e7f00be4240f77d3b6e090c8bed3c9c2e536
+Subproject commit 321b805559c8e911be5bddba13fcbd222a3e2d3a
diff --git a/crt/aws-lc b/crt/aws-lc
index 80c394324..1dd5cf92e 160000
--- a/crt/aws-lc
+++ b/crt/aws-lc
@@ -1 +1 @@
-Subproject commit 80c394324382c78d2cbd783babaad1f612c1642d
+Subproject commit 1dd5cf92e96edd4092bc307b14969dae5eaaa507
diff --git a/crt/s2n b/crt/s2n
index e954ee5dc..de9878642 160000
--- a/crt/s2n
+++ b/crt/s2n
@@ -1 +1 @@
-Subproject commit e954ee5dc878c5c343d35574e7d07246a1e59314
+Subproject commit de987864288ce361707774e5af17d0458966c898