diff --git a/2021/Flynn b/2021/Flynn
index 83be17a..5253db1 160000
--- a/2021/Flynn
+++ b/2021/Flynn
@@ -1 +1 @@
-Subproject commit 83be17aba7aed11b4989ad500c82b11fa16e8401
+Subproject commit 5253db180f74ba86d37016348ebf656ccf044f7e
diff --git a/2021/chvp b/2021/chvp
index ed47d61..59b657d 160000
--- a/2021/chvp
+++ b/2021/chvp
@@ -1 +1 @@
-Subproject commit ed47d6146cb52d4a55dad33cf6d652b96706932b
+Subproject commit 59b657d36087650112f7871df9fc4eacb1cf01ba
diff --git a/2021/mraedis b/2021/mraedis
index 4a12dc1..3e76dbb 160000
--- a/2021/mraedis
+++ b/2021/mraedis
@@ -1 +1 @@
-Subproject commit 4a12dc1b85be1461243c2fa2fd8adbf781b2a0fd
+Subproject commit 3e76dbb46fd06ac324514aaae10f9b05889ad388
diff --git a/2021/ninewise b/2021/ninewise
index bcd54e3..bf39b92 160000
--- a/2021/ninewise
+++ b/2021/ninewise
@@ -1 +1 @@
-Subproject commit bcd54e369b7acd9381f3e5e725dc8068ef6a0b67
+Subproject commit bf39b92abbb96aef1aa66d643da17c1fc93718b5
diff --git a/2021/silvius b/2021/silvius
index b331d63..f8de037 160000
--- a/2021/silvius
+++ b/2021/silvius
@@ -1 +1 @@
-Subproject commit b331d63856342887b8b08357d379e9b7b1c60fa5
+Subproject commit f8de0371163a248dc5c47ce20babb1f2fd2e2510