diff --git a/package.json b/package.json
index 5d482d63..4b0e241e 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,6 @@
     "@commitlint/config-conventional": "19.2.2",
     "@eslint/js": "9.5.0",
     "@types/eslint__js": "8.42.3",
-    "@types/random-seed": "0.3.5",
     "@wdio/browserstack-service": "8.39.0",
     "@wdio/cli": "8.39.0",
     "@wdio/jasmine-framework": "8.39.0",
@@ -73,7 +72,6 @@
     "npm-run-all": "4.1.5",
     "optional-dev-dependency": "2.0.1",
     "prettier": "3.3.2",
-    "random-seed": "0.3.0",
     "runmd": "1.3.9",
     "standard-version": "9.5.0",
     "typescript": "5.4.5",
diff --git a/src/test/parse.test.ts b/src/test/parse.test.ts
index 2039452b..1c5c35b4 100644
--- a/src/test/parse.test.ts
+++ b/src/test/parse.test.ts
@@ -1,20 +1,29 @@
 import * as assert from 'assert';
 import test, { describe } from 'node:test';
-// @ts-expect-error random-seed is an old CJS module.  we should update an ESM seeded
-// RNG at some point, but keeping this for now to ensure the TS port works with
-// the legacy tests here.
-import gen from 'random-seed';
 import parse from '../parse.js';
 import stringify from '../stringify.js';
 import uuidv4 from '../v4.js';
 
-// Use deterministic PRNG for reproducible tests
-const rand = gen.create('He who wonders discovers that this in itself is wonder.');
+// Deterministic PRNG for reproducible tests
+// See https://stackoverflow.com/a/47593316/109538
+function splitmix32(a: number) {
+  return function () {
+    a |= 0;
+    a = (a + 0x9e3779b9) | 0;
+    let t = a ^ (a >>> 16);
+    t = Math.imul(t, 0x21f0aaad);
+    t = t ^ (t >>> 15);
+    t = Math.imul(t, 0x735a2d97);
+    return ((t = t ^ (t >>> 15)) >>> 0) / 4294967296;
+  };
+}
+const rand = splitmix32(0x12345678);
 
 function rng(bytes = new Uint8Array(16)) {
   for (let i = 0; i < 16; i++) {
-    bytes[i] = rand(256);
+    bytes[i] = rand() * 256;
   }
+
   return bytes;
 }
 
diff --git a/tsconfig.esm.json b/tsconfig.esm.json
index c1da86c5..718d5701 100644
--- a/tsconfig.esm.json
+++ b/tsconfig.esm.json
@@ -1,8 +1,8 @@
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
-    "module": "ESNext",
-    "moduleResolution": "Node",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
     "outDir": "./dist/esm"
   }
 }