diff --git a/.changeset/text3d-depth.md b/.changeset/text3d-depth.md
new file mode 100644
index 0000000..4943601
--- /dev/null
+++ b/.changeset/text3d-depth.md
@@ -0,0 +1,5 @@
+---
+'@vosjs/core': patch
+---
+
+Fix text3d extrusion depth: TextGeometry's option is `depth` on current three (the legacy `height` alias is ignored and the extrusion fell back to the default 50, collapsing normalized text to a sliver).
diff --git a/packages/core/src/compiler/generators/generateObjectsSetup.ts b/packages/core/src/compiler/generators/generateObjectsSetup.ts
index 71214ad..d9547b7 100644
--- a/packages/core/src/compiler/generators/generateObjectsSetup.ts
+++ b/packages/core/src/compiler/generators/generateObjectsSetup.ts
@@ -64,7 +64,7 @@ export function generateObjectsSetup(config: any): string {
       const geo = new TextGeometry(a.text, {
         font,
         size: 1,
-        height: a.depth == null ? 0.25 : a.depth,
+        depth: a.depth == null ? 0.25 : a.depth,
         curveSegments: 8,
         bevelEnabled: a.bevel !== false,
         bevelThickness: 0.02,