diff --git a/.eslintrc.json b/.eslintrc.json
index 1269690..b0ffb24 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,4 +1,7 @@
 {
+  "env": {
+    "node": true
+  },
   "parser": "@typescript-eslint/parser",
   "extends": [
     "eslint:recommended",
@@ -30,7 +33,8 @@
     "jsdoc/check-param-names": "error",
     "jsdoc/check-property-names": "error",
     "jsdoc/check-tag-names": "error",
-    "jsdoc/no-types": "error",
+    "jsdoc/require-param-type": "warn",
+    "jsdoc/require-returns-type": "warn",
     "jsdoc/sort-tags": "error",
     "no-constant-condition": "off",
     "no-multi-spaces": "error",
diff --git a/test/metadata.test.ts b/test/metadata.test.js
similarity index 92%
rename from test/metadata.test.ts
rename to test/metadata.test.js
index 9cd470d..05cae21 100644
--- a/test/metadata.test.ts
+++ b/test/metadata.test.js
@@ -2,8 +2,13 @@ import { promises as fs } from 'fs'
 import { describe, expect, it } from 'vitest'
 import { castBigInts, parquetMetadata } from '../src/metadata'
 
-// Helper function to read .parquet file into ArrayBuffer
-async function readFileToArrayBuffer(filePath: string): Promise<ArrayBuffer> {
+/**
+ * Helper function to read .parquet file into ArrayBuffer
+ *
+ * @param {string} filePath
+ * @returns {Promise<ArrayBuffer>}
+ */
+async function readFileToArrayBuffer(filePath) {
   const buffer = await fs.readFile(filePath)
   return buffer.buffer.slice(buffer.byteOffset, buffer.byteOffset + buffer.byteLength)
 }
diff --git a/test/package.test.ts b/test/package.test.js
similarity index 100%
rename from test/package.test.ts
rename to test/package.test.js
diff --git a/test/snappy.test.ts b/test/snappy.test.js
similarity index 100%
rename from test/snappy.test.ts
rename to test/snappy.test.js
diff --git a/test/thrift.test.ts b/test/thrift.test.js
similarity index 100%
rename from test/thrift.test.ts
rename to test/thrift.test.js