diff --git a/requirements.txt b/requirements.txt
index b2d15c04..86373ac9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,4 +63,3 @@ wslink==1.12.4
 yarl>=1
     # via aiohttp
 
-opengeodeweb-microservice==1.*,>=1.2.0
diff --git a/src/opengeodeweb_viewer/rpc/model/model_protocols.py b/src/opengeodeweb_viewer/rpc/model/model_protocols.py
index b6b55b3e..694238cd 100644
--- a/src/opengeodeweb_viewer/rpc/model/model_protocols.py
+++ b/src/opengeodeweb_viewer/rpc/model/model_protocols.py
@@ -82,7 +82,7 @@ def apply_color(
                 pipeline.get_block_style(block_id)["name"] = ""
                 if color_mode == "random":
                     geode_id = pipeline.blockGeodeIds[block_id]
-                    red, green, blue = deterministic_color(str(geode_id))
+                    red, green, blue = deterministic_color(f"{geode_id}_{block_id}")
                     attr.SetBlockColor(block_dataset, [red, green, blue])
                     attr.SetBlockOpacity(block_dataset, 1.0)
                     colors.append(
diff --git a/tests/data/images/model/surfaces/random_color.jpeg b/tests/data/images/model/surfaces/random_color.jpeg
index 74e42471..293cdc9d 100644
Binary files a/tests/data/images/model/surfaces/random_color.jpeg and b/tests/data/images/model/surfaces/random_color.jpeg differ