diff --git a/src/declaration/binary.ts b/src/declaration/binary.ts
index 4c42df1..cf5f3f0 100644
--- a/src/declaration/binary.ts
+++ b/src/declaration/binary.ts
@@ -1,4 +1,4 @@
-import { Buffer } from "node:buffer";
+import { Buffer } from "buffer";
 import {
   createLengthConstraint,
   type LengthConstraintSpec,
diff --git a/src/environment.ts b/src/environment.ts
index 752e25a..9c57043 100644
--- a/src/environment.ts
+++ b/src/environment.ts
@@ -1,4 +1,4 @@
-import { EOL } from "node:os";
+import { EOL } from "os";
 import { render as renderSpecification } from "./specification.js";
 import { render as renderSummary } from "./summary.js";
 import { Results, validate } from "./validation.js";
diff --git a/src/specification.ts b/src/specification.ts
index 9ac139e..754b480 100644
--- a/src/specification.ts
+++ b/src/specification.ts
@@ -1,4 +1,4 @@
-import { basename } from "node:path";
+import { basename } from "path";
 import { extrinsicConstraints, type Constraint } from "./constraint.js";
 import { createDisjunctionFormatter } from "./list.js";
 import { code, inlineCode, italic, list, strong, table } from "./markdown.js";
diff --git a/src/table.ts b/src/table.ts
index 9e4d192..c7fe446 100644
--- a/src/table.ts
+++ b/src/table.ts
@@ -1,4 +1,4 @@
-import { EOL } from "node:os";
+import { EOL } from "os";
 
 const segmenter = new Intl.Segmenter();
 
diff --git a/test/helpers.ts b/test/helpers.ts
index bbb0361..faa3a44 100644
--- a/test/helpers.ts
+++ b/test/helpers.ts
@@ -1,5 +1,5 @@
-import { Console } from "node:console";
-import { Transform } from "node:stream";
+import { Console } from "console";
+import { Transform } from "stream";
 import { Mock, vi } from "vitest";
 
 export function noop() {
diff --git a/test/suite/declaration/binary.spec-d.ts b/test/suite/declaration/binary.spec-d.ts
index 1c9ccbd..3f0459d 100644
--- a/test/suite/declaration/binary.spec-d.ts
+++ b/test/suite/declaration/binary.spec-d.ts
@@ -1,4 +1,4 @@
-import { Buffer } from "node:buffer";
+import { Buffer } from "buffer";
 import { describe, expectTypeOf, it } from "vitest";
 import { binary, initialize } from "../../../src/index.js";
 import { noop } from "../../helpers.js";
diff --git a/test/suite/declaration/binary.spec.ts b/test/suite/declaration/binary.spec.ts
index 50048be..6f46ba6 100644
--- a/test/suite/declaration/binary.spec.ts
+++ b/test/suite/declaration/binary.spec.ts
@@ -1,4 +1,4 @@
-import { Buffer } from "node:buffer";
+import { Buffer } from "buffer";
 import { beforeEach, describe, expect, it } from "vitest";
 import { Declaration } from "../../../src/declaration.js";
 import { Options } from "../../../src/declaration/binary.js";
diff --git a/test/suite/specification.spec.ts b/test/suite/specification.spec.ts
index 4b7f0a4..f676c9e 100644
--- a/test/suite/specification.spec.ts
+++ b/test/suite/specification.spec.ts
@@ -1,6 +1,6 @@
 import { Temporal } from "@js-temporal/polyfill";
-import { join } from "node:path";
-import { fileURLToPath } from "node:url";
+import { join } from "path";
+import { fileURLToPath } from "url";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import { registerVariable } from "../../src/environment.js";
 import {
diff --git a/test/suite/summary.spec.ts b/test/suite/summary.spec.ts
index 15cf187..feb3b42 100644
--- a/test/suite/summary.spec.ts
+++ b/test/suite/summary.spec.ts
@@ -1,6 +1,6 @@
 import { Temporal } from "@js-temporal/polyfill";
-import { join } from "node:path";
-import { fileURLToPath } from "node:url";
+import { join } from "path";
+import { fileURLToPath } from "url";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import { registerVariable } from "../../src/environment.js";
 import {