diff --git a/package-lock.json b/package-lock.json
index c660ad0..24e4f2a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
 			"version": "0.2.0",
 			"license": "MIT",
 			"dependencies": {
-				"utilium": "^0.3.4"
+				"utilium": ">=0.4.0"
 			},
 			"devDependencies": {
 				"@fal-works/esbuild-plugin-global-externals": "^2.1.2",
@@ -977,6 +977,12 @@
 				"node": ">=6"
 			}
 		},
+		"node_modules/eventemitter3": {
+			"version": "5.0.1",
+			"resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-5.0.1.tgz",
+			"integrity": "sha512-GWkBvjiSZK87ELrYOSESUYeVIc9mvLLf/nXalMOS5dYrgZq9o5OVkbZAVM06CVxYsCwH9BDZFPlQTlPA1j4ahA==",
+			"license": "MIT"
+		},
 		"node_modules/events": {
 			"version": "3.3.0",
 			"resolved": "https://registry.npmjs.org/events/-/events-3.3.0.tgz",
@@ -1965,9 +1971,13 @@
 			}
 		},
 		"node_modules/utilium": {
-			"version": "0.3.4",
-			"resolved": "https://registry.npmjs.org/utilium/-/utilium-0.3.4.tgz",
-			"integrity": "sha512-qk6wXThaKkeigQchXWEmTw388ZPvKHwYzpkcII/azXuE8OgQypOKH1j+fA6M88ucpqEdHqldXjNKzHya2S9lHA=="
+			"version": "0.5.10",
+			"resolved": "https://registry.npmjs.org/utilium/-/utilium-0.5.10.tgz",
+			"integrity": "sha512-QP6vV82pp5m3U5eka1BvO8920LkcdNSsNSyuM13QHd3HKFhEcdFBGiBtSBL60FwkrrpQ7GC6PPdpGmv3++dqIw==",
+			"license": "MIT",
+			"dependencies": {
+				"eventemitter3": "^5.0.1"
+			}
 		},
 		"node_modules/vscode-oniguruma": {
 			"version": "1.7.0",
diff --git a/package.json b/package.json
index a3a234d..f491a8c 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,6 @@
 		"@zenfs/core": "^0.12.0"
 	},
 	"dependencies": {
-		"utilium": "^0.3.4"
+		"utilium": ">=0.4.0"
 	}
 }
diff --git a/src/IsoFS.ts b/src/IsoFS.ts
index 01322c9..4af1219 100644
--- a/src/IsoFS.ts
+++ b/src/IsoFS.ts
@@ -1,10 +1,11 @@
-import { ErrnoError, Errno } from '@zenfs/core/error.js';
 import type { Backend } from '@zenfs/core/backends/backend.js';
 import type { Cred } from '@zenfs/core/cred.js';
+import { S_IFDIR, S_IFREG } from '@zenfs/core/emulation/constants.js';
 import { resolve } from '@zenfs/core/emulation/path.js';
+import { Errno, ErrnoError } from '@zenfs/core/error.js';
 import { NoSyncFile, isWriteable } from '@zenfs/core/file.js';
 import { FileSystem, Readonly, Sync, type FileSystemMetadata } from '@zenfs/core/filesystem.js';
-import { FileType, Stats } from '@zenfs/core/stats.js';
+import { Stats } from '@zenfs/core/stats.js';
 import { DirectoryRecord } from './DirectoryRecord.js';
 import { PrimaryOrSupplementaryVolumeDescriptor, PrimaryVolumeDescriptor, SupplementaryVolumeDescriptor, VolumeDescriptor, VolumeDescriptorType } from './VolumeDescriptor.js';
 import { PXEntry, TFEntry, TFFlags } from './entries.js';
@@ -190,7 +191,7 @@ export class IsoFS extends Readonly(Sync(FileSystem)) {
 		// Mask out writeable flags. This is a RO file system.
 		mode &= 0o555;
 		return new Stats({
-			mode: mode | (record.isDirectory(this._data) ? FileType.DIRECTORY : FileType.FILE),
+			mode: mode | (record.isDirectory(this._data) ? S_IFDIR : S_IFREG),
 			size: record.dataLength,
 			atimeMs,
 			mtimeMs,