diff --git a/relibc b/relibc
index e051b18..c99658a 160000
--- a/relibc
+++ b/relibc
@@ -1 +1 @@
-Subproject commit e051b18490d5675fc7b2b25a86cc51753a5d560f
+Subproject commit c99658a8da55692c0e032516ff49d7e2d002d94d
diff --git a/rust-toolchain b/rust-toolchain
index 40973da..2b78242 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2020-07-27
+nightly-2021-06-15