diff --git a/data/Level0/Lake_Greifen_CTD_W_2021-12-13.txt b/data/Level0/Lake_Greifen_CTD_W_2021-12-13.txt
index 073e17726c438ef93d9301bc7f38a31a93d8fc9e..efeaaf311c99e3df2917e87d2ea231d0cf16ef94 100644
--- a/data/Level0/Lake_Greifen_CTD_W_2021-12-13.txt
+++ b/data/Level0/Lake_Greifen_CTD_W_2021-12-13.txt
@@ -1,3 +1,3 @@
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diff --git a/data/Level1A/Lake_Greifen_CTD_W_2021-12-13.nc b/data/Level1A/Lake_Greifen_CTD_W_2021-12-13.nc
index a9a9be3e3884c9d8f1ce478473028376761632e7..b2fdee908376050cef951bde4d0eb046b2d61a13 100644
--- a/data/Level1A/Lake_Greifen_CTD_W_2021-12-13.nc
+++ b/data/Level1A/Lake_Greifen_CTD_W_2021-12-13.nc
@@ -1,3 +1,3 @@
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diff --git a/notebooks/lastupdated.ini b/notebooks/lastupdated.ini
index b2a6c5be217de95d51b199940b0fe0a207d44093..1f33a362ef2b240bad664458c427b144ec59cf05 100644
--- a/notebooks/lastupdated.ini
+++ b/notebooks/lastupdated.ini
@@ -1,3 +1,3 @@
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-datetime = 2021-12-14T00:00:00Z
+datetime = 2021-12-15T00:00:00Z