diff --git a/package-lock.json b/package-lock.json
index 2b4c529..14f1bae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,10 +7,9 @@
 		"": {
 			"name": "@zenfs/emscripten",
 			"version": "0.0.2",
-			"hasInstallScript": true,
 			"license": "MIT",
 			"dependencies": {
-				"utilium": "^0.3.4"
+				"utilium": ">=0.4.0"
 			},
 			"devDependencies": {
 				"@fal-works/esbuild-plugin-global-externals": "^2.1.2",
@@ -27,7 +26,7 @@
 				"node": ">= 18"
 			},
 			"peerDependencies": {
-				"@zenfs/core": "~0.11.2"
+				"@zenfs/core": ">=0.18.0"
 			}
 		},
 		"node_modules/@aashutoshrathi/word-wrap": {
@@ -227,12 +226,13 @@
 			"dev": true
 		},
 		"node_modules/@types/node": {
-			"version": "20.12.7",
-			"resolved": "https://registry.npmjs.org/@types/node/-/node-20.12.7.tgz",
-			"integrity": "sha512-wq0cICSkRLVaf3UGLMGItu/PtdY7oaXaI/RVU+xliKVOtRna3PRY57ZDfztpDL0n11vfymMUnXv8QwYCO7L1wg==",
+			"version": "20.16.5",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-20.16.5.tgz",
+			"integrity": "sha512-VwYCweNo3ERajwy0IUlqqcyZ8/A7Zwa9ZP3MnENWcB11AejO+tLy3pu850goUW2FC/IJMdZUfKpX/yxL1gymCA==",
+			"license": "MIT",
 			"peer": true,
 			"dependencies": {
-				"undici-types": "~5.26.4"
+				"undici-types": "~6.19.2"
 			}
 		},
 		"node_modules/@types/readable-stream": {
@@ -446,32 +446,28 @@
 			"license": "ISC"
 		},
 		"node_modules/@zenfs/core": {
-			"version": "0.11.2",
-			"resolved": "https://registry.npmjs.org/@zenfs/core/-/core-0.11.2.tgz",
-			"integrity": "sha512-ctN7GtUdQqNfW7yF5eD7dpzaooE3AmwCYY0kiH6VGyQufhaIIycniADCBGIVvvT2xJY3lBQdbxNgf7Z7ySwOQA==",
+			"version": "0.18.0",
+			"resolved": "https://registry.npmjs.org/@zenfs/core/-/core-0.18.0.tgz",
+			"integrity": "sha512-ZcKBTbytztoMNq+GywBpN/TGUjQ5WpmQx7VBT48smSVezzzsOCgNlqps+Gp8hdRwytPbPMwV2hinKmewvvcUQA==",
+			"license": "MIT",
 			"peer": true,
 			"dependencies": {
-				"@types/node": "^20.12.5",
+				"@types/node": "^20.12.12",
 				"@types/readable-stream": "^4.0.10",
 				"buffer": "^6.0.3",
+				"eventemitter3": "^5.0.1",
 				"minimatch": "^9.0.3",
 				"readable-stream": "^4.5.2",
-				"utilium": "^0.2.1"
+				"utilium": ">=0.4.0"
 			},
 			"bin": {
 				"build": "scripts/build.js",
 				"make-index": "scripts/make-index.js"
 			},
 			"engines": {
-				"node": ">= 18"
+				"node": ">= 16"
 			}
 		},
-		"node_modules/@zenfs/core/node_modules/utilium": {
-			"version": "0.2.1",
-			"resolved": "https://registry.npmjs.org/utilium/-/utilium-0.2.1.tgz",
-			"integrity": "sha512-uLn55gYhtxFcS2X6rgvd3+aIEx5xVA3GBQgBkyJRdKAHxXXYiyB5P6ZmL/94HIWvgZaVs8xnNRCiiiRUBqyUIA==",
-			"peer": true
-		},
 		"node_modules/abort-controller": {
 			"version": "3.0.0",
 			"license": "MIT",
@@ -950,6 +946,12 @@
 				"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",
 			"license": "MIT",
@@ -1855,9 +1857,10 @@
 			}
 		},
 		"node_modules/undici-types": {
-			"version": "5.26.5",
-			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-			"integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
+			"version": "6.19.8",
+			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+			"integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+			"license": "MIT",
 			"peer": true
 		},
 		"node_modules/uri-js": {
@@ -1869,9 +1872,13 @@
 			}
 		},
 		"node_modules/utilium": {
-			"version": "0.3.4",
-			"resolved": "https://registry.npmjs.org/utilium/-/utilium-0.3.4.tgz",
-			"integrity": "sha512-qk6wXThaKkeigQchXWEmTw388ZPvKHwYzpkcII/azXuE8OgQypOKH1j+fA6M88ucpqEdHqldXjNKzHya2S9lHA=="
+			"version": "0.6.2",
+			"resolved": "https://registry.npmjs.org/utilium/-/utilium-0.6.2.tgz",
+			"integrity": "sha512-0SKmuJ001j6EvZQ9oa47MFRQ01ArBor79jXoij/I2jY7E5HoN+CvrYuQaX7730ya0W6uQ2MwwGWIzhAD+YqhXQ==",
+			"license": "MIT",
+			"dependencies": {
+				"eventemitter3": "^5.0.1"
+			}
 		},
 		"node_modules/vscode-oniguruma": {
 			"version": "1.7.0",
diff --git a/package.json b/package.json
index 0146b51..02e260f 100644
--- a/package.json
+++ b/package.json
@@ -54,9 +54,9 @@
 		"typescript": "5.2.2"
 	},
 	"peerDependencies": {
-		"@zenfs/core": "~0.11.2"
+		"@zenfs/core": ">=0.18.0"
 	},
 	"dependencies": {
-		"utilium": "^0.3.4"
+		"utilium": ">=0.4.0"
 	}
 }
diff --git a/src/backend.ts b/src/backend.ts
index 2668f38..51c5051 100644
--- a/src/backend.ts
+++ b/src/backend.ts
@@ -1,9 +1,8 @@
-import type { Backend } from '@zenfs/core';
-import { Cred } from '@zenfs/core/cred.js';
+import { Sync, type Backend } from '@zenfs/core';
 import { basename, dirname } from '@zenfs/core/emulation/path.js';
 import { Errno, ErrnoError, errorMessages } from '@zenfs/core/error.js';
 import { File } from '@zenfs/core/file.js';
-import { FileSystem, FileSystemMetadata, Sync } from '@zenfs/core/filesystem.js';
+import { FileSystem, FileSystemMetadata } from '@zenfs/core/filesystem.js';
 import { FileType, Stats } from '@zenfs/core/stats.js';
 import { Buffer } from 'buffer';
 
@@ -158,11 +157,11 @@ export class EmscriptenFS extends Sync(FileSystem) {
 		}
 	}
 
-	public renameSync(oldPath: string, newPath: string, cred: Cred): void {
+	public renameSync(oldPath: string, newPath: string): void {
 		try {
 			this.em.rename(oldPath, newPath);
 		} catch (e) {
-			throw convertError(e, e.errno != Errno.ENOENT ? '' : this.existsSync(oldPath, cred) ? newPath : oldPath);
+			throw convertError(e, e.errno != Errno.ENOENT ? '' : this.existsSync(oldPath) ? newPath : oldPath);
 		}
 	}