diff --git a/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/initialize-master-data.py b/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/initialize-master-data.py
index d76ed8acd11035a28bd2b1b8c72d737f68e93147..be96493467fe5f9cb9b1448029cf3e59c0af9876 100644
--- a/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/initialize-master-data.py
+++ b/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/initialize-master-data.py
@@ -25,9 +25,9 @@ helper = MasterDataRegistrationHelper(sys.path)
 api = CommonServiceProvider.getApplicationContext().getBean(ApplicationServerApi.INTERNAL_SERVICE_NAME)
 sessionToken = api.loginAsSystem()
 props = CustomASServiceExecutionOptions().withParameter('xls', helper.listXlsByteArrays()) \
-    .withParameter('xls_name', 'ELN-LIMS-LIFE-SCIENCES').withParameter('update_mode', 'IGNORE_EXISTING') \
+    .withParameter('xls_name', 'ELN-LIMS-LIFE-SCIENCES').withParameter('update_mode', 'UPDATE_IF_EXISTS') \
     .withParameter('scripts', helper.getAllScripts())
-result = api.executeCustomASService(sessionToken, CustomASServiceCode("xls-import-api"), props)
+result = api.executeCustomASService(sessionToken, CustomASServiceCode("xls-import-api"), props);
 print("======================== master-data xls ingestion result ========================")
 print(result)
 print("======================== master-data xls ingestion result ========================")
diff --git a/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/master-data/data-model.xls b/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/master-data/data-model.xls
index e2755043112873eaa41408f7a01ab4e152444d93..81488fb66072a5e269b4a1a20e973f602895ef58 100644
Binary files a/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/master-data/data-model.xls and b/openbis_standard_technologies/dist/core-plugins/eln-lims-life-sciences/1/as/master-data/data-model.xls differ