diff --git a/data/Level0/Lake_Greifen_CTD_W_2021-12-06.txt b/data/Level0/Lake_Greifen_CTD_W_2021-12-06.txt
index 31cb552f4e448ff22185b95848e266084386c9c4..27589dbce4f8d569cab8faa2a0ca9c3e26782dbb 100644
--- a/data/Level0/Lake_Greifen_CTD_W_2021-12-06.txt
+++ b/data/Level0/Lake_Greifen_CTD_W_2021-12-06.txt
@@ -1,3 +1,3 @@
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diff --git a/data/Level1A/Lake_Greifen_CTD_W_2021-12-06.nc b/data/Level1A/Lake_Greifen_CTD_W_2021-12-06.nc
index ac239aeb9aab31e816375634766b873ee5adbbb8..e63846bc7e5078bd6a7665d042748500e62d4467 100644
--- a/data/Level1A/Lake_Greifen_CTD_W_2021-12-06.nc
+++ b/data/Level1A/Lake_Greifen_CTD_W_2021-12-06.nc
@@ -1,3 +1,3 @@
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diff --git a/notebooks/lastupdated.ini b/notebooks/lastupdated.ini
index 098562756bce7c965474f05c8c0ca5871c871136..16eca3186e732387ab7e5dcc0b79e998d6158c14 100644
--- a/notebooks/lastupdated.ini
+++ b/notebooks/lastupdated.ini
@@ -1,3 +1,3 @@
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-datetime = 2021-12-10T00:00:00Z
+datetime = 2021-12-11T00:00:00Z