diff --git a/2021/rien b/2021/rien
index f10a209..28ad9f0 160000
--- a/2021/rien
+++ b/2021/rien
@@ -1 +1 @@
-Subproject commit f10a209e6300ebb542491eb4962dc786d7f27db5
+Subproject commit 28ad9f03cf773f8a729e2a307e34157123b36483