diff --git a/doc/changelog.d/147.maintenance.md b/doc/changelog.d/147.maintenance.md
new file mode 100644
index 00000000..f0d190c7
--- /dev/null
+++ b/doc/changelog.d/147.maintenance.md
@@ -0,0 +1 @@
+Bump trame_vtklocal to 1.6.2
diff --git a/poetry.lock b/poetry.lock
index c083c87b..b1799546 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.3.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.3 and should not be changed by hand.
 
 [[package]]
 name = "accessible-pygments"
@@ -1721,7 +1721,7 @@ files = [
 
 [package.dependencies]
 attrs = ">=22.2.0"
-jsonschema-specifications = ">=2023.3.6"
+jsonschema-specifications = ">=2023.03.6"
 referencing = ">=0.28.4"
 rpds-py = ">=0.25.0"
 
@@ -4500,14 +4500,14 @@ dev = ["nox", "pre-commit", "pytest", "pytest-asyncio", "pytest-cov", "ruff", "t
 
 [[package]]
 name = "trame-vtklocal"
-version = "0.16.4"
+version = "1.6.2"
 description = "VTK Local Rendering using WASM"
 optional = false
-python-versions = ">=3.9"
+python-versions = ">=3.10"
 groups = ["main", "setup"]
 files = [
-    {file = "trame_vtklocal-0.16.4-py3-none-any.whl", hash = "sha256:21028d627a025694076e85bcb6cc564db6190652bfcdf04154c6158936e3601b"},
-    {file = "trame_vtklocal-0.16.4.tar.gz", hash = "sha256:97c0d11e43913f79b9697fde65fad9ab752b92c2a28fcedd5344eca0b589b4e5"},
+    {file = "trame_vtklocal-1.6.2-py3-none-any.whl", hash = "sha256:43c6f004db542010d8b77f0d62386da8bfa8d2c7aa2d892201bd3a2987c3a079"},
+    {file = "trame_vtklocal-1.6.2.tar.gz", hash = "sha256:72371cea11a5c9b0bbb18398bdc3926d05277632d1f45c78edea1d4285307e39"},
 ]
 
 [package.dependencies]
@@ -4516,8 +4516,8 @@ trame = "*"
 trame-common = "*"
 
 [package.extras]
-dev = ["pre-commit", "pytest", "pytest-asyncio", "ruff", "trame-client[test]"]
-vtk = ["vtk (>=9.4)"]
+dev = ["coverage", "pre-commit", "pytest", "pytest-asyncio", "pytest-cov (>=3)", "pytest-playwright", "ruff", "trame-client[test]", "trame-vuetify", "vtk (==9.7.20260726.dev0)"]
+vtk = ["vtk (>=9.6.1)"]
 
 [[package]]
 name = "trio"
@@ -4844,4 +4844,4 @@ type = ["pytest-mypy (>=1.0.1) ; platform_python_implementation != \"PyPy\""]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.11"
-content-hash = "62b8a9dd70649a4e2e0347aed933c708c0a81189394d7347ea0d0c57482e3577"
+content-hash = "d5d6bab06e18ca951403bf70d4f00868671f036d7d2a7b07351abd9646f14fbf"
diff --git a/pyproject.toml b/pyproject.toml
index 81a2ce6b..f69585b3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -64,7 +64,7 @@ python = "^3.11"
 trame = "3.12.0"
 trame-server = "^3.6.0"
 wslink = "^2.5.0"
-trame-vtklocal = "0.16.4"
+trame-vtklocal = "1.6.2"
 vtk = "9.6.1"
 fastapi = "^0.136.3"
 starlette =  ">=1.3.1"
@@ -99,7 +99,7 @@ deepdiff = "^8.6.1"
 
 [tool.poetry.group.setup.dependencies]
 trame = "3.12.0"
-trame-vtklocal = "0.16.4"
+trame-vtklocal = "1.6.2"
 vtk = "9.6.1"
 # Provides dash-generate-components CLI used by `npm run build:backends`
 dash = {version = ">=2.0.0", extras = ["dev"]}
diff --git a/src/ansys/visor/viewer/utils/autosetup.py b/src/ansys/visor/viewer/utils/autosetup.py
index d05f599b..62efcbdf 100644
--- a/src/ansys/visor/viewer/utils/autosetup.py
+++ b/src/ansys/visor/viewer/utils/autosetup.py
@@ -47,7 +47,10 @@ def copy_wasm(src: Path, dst: Path) -> None:
     else:
         raise RuntimeError(f"Unsupported platform: {sys.platform}")
 
-    src = site_packages / "trame_vtklocal" / "module" / "serve" / "wasm" / version
+    # trame_vtklocal >= 1.6.2 no longer ships a flat "wasm/<version>" directory; it downloads
+    # per-architecture builds on demand into "wasm32/<version>" and "wasm64/<version>" instead.
+    # We bundle the wasm32 (non-threaded) build since it doesn't require crossOriginIsolated.
+    src = site_packages / "trame_vtklocal" / "module" / "serve" / "wasm32" / version
 
     if not src.is_dir():
         raise Exception(f"WASM not found at: {src}")
diff --git a/src/ansys/visor/visor-client/src/wasm/RemoteVtkScene.js b/src/ansys/visor/visor-client/src/wasm/RemoteVtkScene.js
index 3a0ed10b..4006a6f2 100644
--- a/src/ansys/visor/visor-client/src/wasm/RemoteVtkScene.js
+++ b/src/ansys/visor/visor-client/src/wasm/RemoteVtkScene.js
@@ -128,17 +128,29 @@ export default class RemoteVtkScene {
         let wasmUrl = config.wasmUrl;
         const trameInterface = await TrameInterface.getInstanceAsync(webSocketUrl, refNameStateKey);
 
-        // trame-vtklocal registers wasm files under a versioned path and
-        // exposes it as `__trame_vtklocal_wasm_url` in Trame state.
-        // We derive the absolute wasm base URL from the WebSocket origin +
-        // that state value so we always fetch from the server that actually
-        // has the files, regardless of which port the Dash app runs on.
-        const trameWasmUrl = trameInterface.getState('__trame_vtklocal_wasm_url');
-        if (trameWasmUrl && typeof trameWasmUrl === 'string') {
-            // webSocketUrl is e.g. "ws://127.0.0.1:44473/ws"
-            // We need "http://127.0.0.1:44473/__trame_vtklocal/wasm/9.6.1"
-            const wsOrigin = webSocketUrl.replace(/^ws(s?):\/\//, 'http$1://').replace(/\/ws$/, '');
-            wasmUrl = `${wsOrigin}/${trameWasmUrl}`;
+        // trame-vtklocal registers wasm files under a versioned path.
+        // Older versions exposed a plain string under
+        // `__trame_vtklocal_wasm_url`. Newer versions expose an object under
+        // keys like `__trame_vtklocal_wasm32` / `__trame_vtklocal_wasm64` with
+        // a `url` property. Try multiple possible state keys and use the
+        // first one we find.
+        const wsOrigin = webSocketUrl.replace(/^ws(s?):\/\//, 'http$1://').replace(/\/ws$/, '');
+        const wasmStateCandidates = [
+            '__trame_vtklocal_wasm_url',
+            '__trame_vtklocal_wasm',
+            '__trame_vtklocal_wasm32',
+            '__trame_vtklocal_wasm64',
+        ];
+        for (const key of wasmStateCandidates) {
+            const val = trameInterface.getState(key);
+            if (typeof val === 'string' && val.length > 0) {
+                wasmUrl = `${wsOrigin}/${val}`;
+                break;
+            }
+            if (val && typeof val === 'object' && typeof val.url === 'string') {
+                wasmUrl = `${wsOrigin}/${val.url}`;
+                break;
+            }
         }
 
         const wasmIds = trameInterface.getState(wasmIdsStateKey);
diff --git a/tests/unit/utils/test_autosetup.py b/tests/unit/utils/test_autosetup.py
index 576628d4..9554b7dc 100644
--- a/tests/unit/utils/test_autosetup.py
+++ b/tests/unit/utils/test_autosetup.py
@@ -25,7 +25,7 @@ def test_prepare_wasm_assets_linux_success(monkeypatch, tmp_path):
     monkeypatch.setattr(f"{MODULE}.sys.platform", "linux")
 
     fake_site = tmp_path / "site-packages"
-    wasm_src = fake_site / "trame_vtklocal/module/serve/wasm/9.3"
+    wasm_src = fake_site / "trame_vtklocal/module/serve/wasm32/9.3"
     wasm_src.mkdir(parents=True)
 
     monkeypatch.setattr(f"{MODULE}.site.getsitepackages", lambda: [str(fake_site)])
@@ -52,7 +52,7 @@ def test_prepare_wasm_assets_windows_success(monkeypatch, tmp_path):
 
     monkeypatch.setattr(f"{MODULE}.sys.platform", "win32")
 
-    wasm_src = tmp_path / ".venv/Lib/site-packages/trame_vtklocal/module/serve/wasm/9.3"
+    wasm_src = tmp_path / ".venv/Lib/site-packages/trame_vtklocal/module/serve/wasm32/9.3"
     wasm_src.mkdir(parents=True)
 
     monkeypatch.setattr(f"{MODULE}.shutil.copytree", lambda s, d: None)