diff --git a/crt/aws-c-auth b/crt/aws-c-auth
index 119403930..8e5e46188 160000
--- a/crt/aws-c-auth
+++ b/crt/aws-c-auth
@@ -1 +1 @@
-Subproject commit 119403930667b8f99f7873af5fb0ca5b0cdbe5ab
+Subproject commit 8e5e46188105c2072f06da366a02378074e40177
diff --git a/crt/aws-c-io b/crt/aws-c-io
index 0b03c3094..4c65ce51d 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit 0b03c30949a2d6327557f25fd02ea1d148e1900b
+Subproject commit 4c65ce51d2d7050e1ce1030881b6a4df22d33544
diff --git a/crt/s2n b/crt/s2n
index 54fbc3c3d..c74f442b5 160000
--- a/crt/s2n
+++ b/crt/s2n
@@ -1 +1 @@
-Subproject commit 54fbc3c3d4530badaa2c0be518b745bb6e1ebf41
+Subproject commit c74f442b55589872b1374559bb03878c49761ca6