diff --git a/CHANGELOG.md b/CHANGELOG.md
index 470495f9..61ebd1d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 # CHANGELOG
 
 
+## v5.7.3-rc.1 (2025-05-20)
+
+### Bug Fixes
+
+- **blueprint_models**: Set current_index
+  ([`1e831c7`](https://github.com/Geode-solutions/OpenGeodeWeb-Back/commit/1e831c792d99bd812234e7a03cab25902dc6c9fb))
+
+
 ## v5.7.2 (2025-05-19)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 9e252900..0893e436 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "OpenGeodeWeb-Back"
-version = "5.7.2"
+version = "5.7.3-rc.1"
 dynamic = ["dependencies"]
 authors = [
   { name="Geode-solutions", email="team-web@geode-solutions.com" },
diff --git a/src/opengeodeweb_back/routes/models/blueprint_models.py b/src/opengeodeweb_back/routes/models/blueprint_models.py
index cb5e7e49..f43a3390 100644
--- a/src/opengeodeweb_back/routes/models/blueprint_models.py
+++ b/src/opengeodeweb_back/routes/models/blueprint_models.py
@@ -27,11 +27,12 @@ def uuid_to_flat_index():
     tree = ET.parse(vtm_file_path)
     root = tree.find("vtkMultiBlockDataSet")
     uuid_to_flat_index = {}
-    current_index = 1
+    current_index = 0
 
     for elem in root.iter():
         if "uuid" in elem.attrib and elem.tag == "DataSet":
             uuid_to_flat_index[elem.attrib["uuid"]] = current_index
+
         current_index += 1
 
     return flask.make_response(