diff --git a/picolibc b/picolibc
index 87e27996..21d8fed7 160000
--- a/picolibc
+++ b/picolibc
@@ -1 +1 @@
-Subproject commit 87e27996304b79e4ea3d18db7c996768e749b0be
+Subproject commit 21d8fed73c34bfaf406ebedab2db46474baa1f20