diff --git a/README.md b/README.md
index aabc547..9f7acdd 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,10 @@ Rule 2:
 This repository includes and indexer tool (artifact_builder) that builds json artifacts to be 
 easily imported into Postgres using NDJSON format. 
 
+It uses submodule, so be careful when testing around.
+
+> General advice, is to run `git submodule update --recursive --remote` whenever new changes are published in artifact_builder.
+
 ## Testing
 
 TODO
diff --git a/artifact_builder b/artifact_builder
index 59b07c4..0431e1b 160000
--- a/artifact_builder
+++ b/artifact_builder
@@ -1 +1 @@
-Subproject commit 59b07c40c2e3da565fa854a4a218bdc1cec8cad0
+Subproject commit 0431e1b4c430bd27a7694e5140abe4444e51ad9d