diff --git a/crt/aws-c-io b/crt/aws-c-io
index 8f85d226..dc41ddc4 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit 8f85d22662c9eefadd2ad683d29206a82970aa07
+Subproject commit dc41ddc498c10ebbf69aba7775afa36c8c1910bd
diff --git a/crt/s2n b/crt/s2n
index 66a3bcbb..ffe0bf42 160000
--- a/crt/s2n
+++ b/crt/s2n
@@ -1 +1 @@
-Subproject commit 66a3bcbb500b17461e348168b8ea41ad815e000b
+Subproject commit ffe0bf42da8f139eff8fd2237f47fbde40b478fb