diff --git a/Project.toml b/Project.toml
index 689d127..76a688b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,7 +24,7 @@ EzXML = "1"
 Makie = "0.15, 0.16"
 MeshViz = "0.3"
 Meshes = "0.19, 0.20, 0.21"
-MultiScaleTreeGraph = "0.2, 0.3, 0.4"
+MultiScaleTreeGraph = "0.3, 0.4"
 RecipesBase = "1"
 StaticArrays = "1"
 julia = "1.6"
diff --git a/README.md b/README.md
index 2c3d145..ae32e78 100644
--- a/README.md
+++ b/README.md
@@ -72,3 +72,4 @@ transform!(mtg, refmesh_to_mesh!)
   - [ ] Mesh for the nodes
   - [ ] Reference meshes + transformation matrix (e.g. from OPF)
   - [ ] Reference meshes + Length and/or Width/diameter for scaling. If only Length, scale the whole mesh by a factor, if Length + Width, scale accordingly
+- [ ] Remove coffee.opf from tests and add PlantBiophysics as a dependency instead. It will make PlantGeom much lighter.