diff --git a/Project.toml b/Project.toml
index 7939d85..17a312c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -29,9 +29,9 @@ Colors = "0.9, 0.10, 0.11, 0.12, 0.13"
 CoordinateTransformations = "0.5, 0.6"
 DocStringExtensions = "0.5, 0.6, 0.7, 0.8, 0.9"
 FFMPEG = "0.2, 0.3, 0.4"
-GeometryBasics = "0.3, 0.4"
+GeometryBasics = "0.5"
 HTTP = "1"
-MeshIO = "0.4"
+MeshIO = "0.5"
 Meshing = "0.7"
 MsgPack = "1"
 Parameters = "0.10, 0.11, 0.12, 0.13"
diff --git a/notebooks/Project.toml b/notebooks/Project.toml
index 2f0d173..1a29a0a 100644
--- a/notebooks/Project.toml
+++ b/notebooks/Project.toml
@@ -11,6 +11,6 @@ Rotations = "6038ab10-8711-5258-84ad-4b1120ba62dc"
 [compat]
 Colors = "0.9, 0.10, 0.11, 0.12, 0.13"
 FileIO = "1"
-GeometryBasics = "0.3, 0.4"
+GeometryBasics = "0.5"
 Meshing = "0.7"
-MeshIO = "0.4"
+MeshIO = "0.5"
diff --git a/src/MeshCat.jl b/src/MeshCat.jl
index 8fa38ce..11e312f 100644
--- a/src/MeshCat.jl
+++ b/src/MeshCat.jl
@@ -10,7 +10,7 @@ using GeometryBasics: GeometryBasics,
   GeometryPrimitive,
   HyperRectangle,
   HyperSphere,
-  MeshMeta,
+  MetaMesh,
   NgonFace,
   OffsetInteger,
   Point,
@@ -20,7 +20,6 @@ using GeometryBasics: GeometryBasics,
   Vec,
   decompose,
   meta,
-  metafree,
   origin,
   radius,
   texturecoordinates,
diff --git a/src/geometry.jl b/src/geometry.jl
index 5c391b9..b3d1a0c 100644
--- a/src/geometry.jl
+++ b/src/geometry.jl
@@ -71,7 +71,7 @@ intrinsic_transform(g::HyperRectangle) = Translation(center(g)...)
 intrinsic_transform(g::HyperSphere) = Translation(center(g)...)
 intrinsic_transform(g::HyperEllipsoid) = Translation(center(g)...) ∘ LinearMap(SMatrix{3, 3}(SDiagonal(radii(g)...)))
 
-function intrinsic_transform(g::Cylinder{3})
+function intrinsic_transform(g::Cylinder)
     # Three.js wants a cylinder to lie along the y axis
     R = rotation_between(SVector(0, 1, 0), g.extremity - origin(g))
     Translation(center(g)) ∘ LinearMap(R)
diff --git a/src/lowering.jl b/src/lowering.jl
index d902bd7..fcd6c01 100644
--- a/src/lowering.jl
+++ b/src/lowering.jl
@@ -61,7 +61,7 @@ function lower(box::HyperRectangle{3})
     )
 end
 
-function lower(c::Cylinder{3})
+function lower(c::Cylinder)
     Dict{String, Any}(
         "uuid" => string(uuid1()),
         "type" => "CylinderGeometry",
@@ -144,27 +144,25 @@ to_zero_index(f::AbstractNgonFace{N}) where {N} = SVector(raw.(convert(NgonFace{
 
 lower(faces::Vector{<:AbstractFace}) = lower(to_zero_index.(faces))
 
-function lower(mesh_meta::M) where {M <: AbstractMesh}
-    mesh = metafree(mesh_meta)
+function lower(meta_mesh::M) where {M <: AbstractMesh}
     attributes = Dict{String, Any}(
-        "position" => lower(convert(Vector{Point3f}, decompose(Point3f, mesh))),
+        "position" => lower(convert(Vector{Point3f}, decompose(Point3f, meta_mesh))),
     )
-    if M <: MeshMeta
-        metadata = meta(mesh_meta)
-        if hasfield(typeof(metadata), :vertexColors)
-            attributes["color"] = lower(convert(Vector{RGB{Float32}}, metadata.vertexColors))
+    if M <: MetaMesh
+        if haskey(meta_mesh, :vertexColors)
+            attributes["color"] = lower(convert(Vector{RGB{Float32}}, meta_mesh[:vertexColors]))
         end
     end
-    uv = texturecoordinates(mesh)
+    uv = texturecoordinates(meta_mesh)
     if uv !== nothing
-        attributes["uv"] = lower(uv)
+        attributes["uv"] = lower(GeometryBasics.values(uv))
     end
     Dict{String, Any}(
         "uuid" => string(uuid1()),
         "type" => "BufferGeometry",
         "data" => Dict{String, Any}(
             "attributes" => attributes,
-            "index" => lower(decompose(GLTriangleFace, mesh))
+            "index" => lower(decompose(GLTriangleFace, meta_mesh))
         )
     )
 end
diff --git a/test/visualizer.jl b/test/visualizer.jl
index 7461e94..8edc7fb 100644
--- a/test/visualizer.jl
+++ b/test/visualizer.jl
@@ -160,11 +160,11 @@ end
                 [Point(0., 0, 0), Point(1., 0, 0), Point(1., 1, 0)],
                 [NgonFace(1, 2, 3)])
             # Wrap that mesh with metadata encoding the vertex colors
-            mesh_meta = meta(geometry, vertexColors=[RGB(1, 0, 0), RGB(0, 1, 0), RGB(0, 0, 1)])
+            meta_mesh = MetaMesh(geometry, vertexColors=[RGB(1, 0, 0), RGB(0, 1, 0), RGB(0, 0, 1)])
             # Create a Gouraud-shaded material with vertex coloring enabled
             material = MeshLambertMaterial(vertexColors=true)
             # Add it to the scene
-            setobject!(v[:vertex_color_mesh], mesh_meta, material)
+            setobject!(v[:vertex_color_mesh], meta_mesh, material)
             settransform!(v[:vertex_color_mesh], Translation(1, -1.5, 0))
         end