diff --git a/2021/rien b/2021/rien
index 2fa59b2..4539030 160000
--- a/2021/rien
+++ b/2021/rien
@@ -1 +1 @@
-Subproject commit 2fa59b2971cee22ee909c1901b712dd56ab7fa15
+Subproject commit 4539030bbfdf78211f5dd0b6c22d464d4eeb2402