diff --git a/profiles/templates/3.5/6_ac_update_sync/world/0-ini b/profiles/templates/3.5/6_ac_update_sync/world/0-ini
index f7c36fb..7cdda71 100644
--- a/profiles/templates/3.5/6_ac_update_sync/world/0-ini
+++ b/profiles/templates/3.5/6_ac_update_sync/world/0-ini
@@ -1,4 +1,4 @@
 # Calculate path=/var/lib/calculate name=ini.env format=samba cl_update_world==rebuild||cl_update_world==merge||ini(overlay-distros.world)==
 
 [overlay-distros]
-world = 20210126
+world = 20210311
diff --git a/profiles/templates/3.5/6_ac_update_sync/world/create/tools b/profiles/templates/3.5/6_ac_update_sync/world/create/tools
index 09eb3f6..c80a104 100644
--- a/profiles/templates/3.5/6_ac_update_sync/world/create/tools
+++ b/profiles/templates/3.5/6_ac_update_sync/world/create/tools
@@ -100,7 +100,6 @@ gnome-base/dconf-editor
 app-antivirus/clamav
 app-i18n/enca
 app-portage/ufed
-dev-libs/klibc
 dev-python/psycopg
 dev-python/pyserial
 sci-libs/fftw
diff --git a/profiles/templates/3.5/6_ac_update_sync/world/update/2021/20210311 b/profiles/templates/3.5/6_ac_update_sync/world/update/2021/20210311
new file mode 100644
index 0000000..469949f
--- /dev/null
+++ b/profiles/templates/3.5/6_ac_update_sync/world/update/2021/20210311
@@ -0,0 +1,5 @@
+# Calculate format=world name=world ini(overlay-distros.world)<#-cut()-#
+
+#-ini(overlay-distros.world,#-cut()-#)-#
+
+!dev-libs/klibc