diff --git a/CHANGELOG.md b/CHANGELOG.md
index c77fc4f..52ca22c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres
 to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Fixed
+- Fixed EPERM Exception when datastore is at the root of a disk on Windows [#48](https://github.com/seald/nedb/issues/48)
+
 ## [4.0.2] - 2023-05-05
 ### Fixed
 - Fixed typo in documentation [#36](https://github.com/seald/nedb/pull/36)
diff --git a/lib/persistence.js b/lib/persistence.js
index 28e0e21..ba359a5 100755
--- a/lib/persistence.js
+++ b/lib/persistence.js
@@ -373,7 +373,11 @@ class Persistence {
    * @private
    */
   static async ensureDirectoryExistsAsync (dir, mode = DEFAULT_DIR_MODE) {
-    await storage.mkdirAsync(dir, { recursive: true, mode })
+    const parsedDir = path.parse(path.resolve(dir))
+    // this is because on Windows mkdir throws a permission error when called on the root directory of a volume
+    if (process.platform !== 'win32' || parsedDir.dir !== parsedDir.root || parsedDir.base !== '') {
+      await storage.mkdirAsync(dir, { recursive: true, mode })
+    }
   }
 }
 
diff --git a/package-lock.json b/package-lock.json
index e225b5e..8d034ea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@seald-io/nedb",
-  "version": "4.0.2",
+  "version": "4.0.3-1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@seald-io/nedb",
-      "version": "4.0.2",
+      "version": "4.0.3-1",
       "license": "MIT",
       "dependencies": {
         "@seald-io/binary-search-tree": "^1.0.3",
diff --git a/package.json b/package.json
index de5c60f..db0c660 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@seald-io/nedb",
-  "version": "4.0.2",
+  "version": "4.0.3-1",
   "files": [
     "lib/**/*.js",
     "browser-version/**/*.js",