diff --git a/contracts/libc++/upstream b/contracts/libc++/upstream
index 35a26f82dae8b292290815ae6ede8f849ce7806f..959b01fb8b617851e260bd2218ac8ba74269fec9 160000
--- a/contracts/libc++/upstream
+++ b/contracts/libc++/upstream
@@ -1 +1 @@
-Subproject commit 35a26f82dae8b292290815ae6ede8f849ce7806f
+Subproject commit 959b01fb8b617851e260bd2218ac8ba74269fec9
diff --git a/contracts/musl/upstream b/contracts/musl/upstream
index 29098b1f3044e7a9e2c1152028dba08885ea04f9..ee49ba896db1de3c3e4f4285eb4e285b641a6cd9 160000
--- a/contracts/musl/upstream
+++ b/contracts/musl/upstream
@@ -1 +1 @@
-Subproject commit 29098b1f3044e7a9e2c1152028dba08885ea04f9
+Subproject commit ee49ba896db1de3c3e4f4285eb4e285b641a6cd9