diff --git a/example_tables/ENA_template_samples.tsv b/example_tables/ENA_template_samples.tsv
index 9b0d035..c3084d8 100644
--- a/example_tables/ENA_template_samples.tsv
+++ b/example_tables/ENA_template_samples.tsv
@@ -1,3 +1,3 @@
-alias	title	scientific_name	sample_description
-sample_alias_4	sample_title_1	homo sapiens	sample_description_1
-sample_alias_5	sample_title_2	human metagenome	sample_description_2
+alias	title	scientific_name	sample_description	collection date	geographic location (country and/or sea)
+sample_alias_4	sample_title_1	homo sapiens	sample_description_1	2020-10-11	Argentina
+sample_alias_5	sample_title_2	human metagenome	sample_description_2	2008-01-24	Belgium
diff --git a/requirements.txt b/requirements.txt
index 8958e29..527c197 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 genshi==0.7.*
 lxml>=4.9.3, <= 5.0.0
 pandas>=2.0.3 , <= 3.0.0
-pyyaml==5.* 
+pyyaml==5.*
 requests>=2.31.0 , <= 3.0.0
 openpyxl>=3.1.2 , <= 4.0.0