diff --git a/README.md b/README.md
index d5f3fb8..6e4d634 100644
--- a/README.md
+++ b/README.md
@@ -351,7 +351,7 @@ module.exports = {
 Type: `string|string[]`
 
 Similar to [`mixinsDir`](#mixinsdir); except, you can provide
-[fast-glob](https://github.com/mrmlnc/fast-glob) syntax to target or not target
+[tinyglobby](https://github.com/SuperchupuDev/tinyglobby) syntax to target or not target
 specific files.
 
 ```js
diff --git a/index.js b/index.js
index 549085e..2eaf9d4 100644
--- a/index.js
+++ b/index.js
@@ -1,13 +1,11 @@
-let glob = require('fast-glob')
 let { readFileSync } = require('node:fs')
-let { platform } = require('node:os')
 let { basename, extname, join, relative } = require('node:path')
 let { parse } = require('postcss-js')
 let vars = require('postcss-simple-vars')
 let sugarss = require('sugarss')
+let { globSync } = require('tinyglobby')
 
 let MIXINS_GLOB = '*.{js,cjs,mjs,json,css,sss,pcss}'
-let IS_WIN = platform().includes('win32')
 
 function addMixin(helpers, mixins, rule, file) {
   let name = rule.params.split(/\s/, 1)[0]
@@ -48,7 +46,7 @@ function processModulesForHotReloadRecursively(module, helpers) {
 
 function loadGlobalMixin(helpers, globs) {
   let cwd = process.cwd()
-  let files = glob.sync(globs, { caseSensitiveMatch: IS_WIN })
+  let files = globSync(globs, { caseSensitiveMatch: false })
   let mixins = {}
   files.forEach(i => {
     let ext = extname(i).toLowerCase()
diff --git a/package.json b/package.json
index 1bc6843..44bc5d7 100644
--- a/package.json
+++ b/package.json
@@ -35,10 +35,10 @@
     "postcss": "^8.2.14"
   },
   "dependencies": {
-    "fast-glob": "^3.3.2",
     "postcss-js": "^4.0.1",
     "postcss-simple-vars": "^7.0.1",
-    "sugarss": "^4.0.1"
+    "sugarss": "^4.0.1",
+    "tinyglobby": "^0.2.6"
   },
   "devDependencies": {
     "@logux/eslint-config": "^53.4.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b5de91a..fb62d58 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,9 +8,6 @@ importers:
 
   .:
     dependencies:
-      fast-glob:
-        specifier: ^3.3.2
-        version: 3.3.2
       postcss-js:
         specifier: ^4.0.1
         version: 4.0.1(postcss@8.4.45)
@@ -20,6 +17,9 @@ importers:
       sugarss:
         specifier: ^4.0.1
         version: 4.0.1(postcss@8.4.45)
+      tinyglobby:
+        specifier: ^0.2.6
+        version: 0.2.6
     devDependencies:
       '@logux/eslint-config':
         specifier: ^53.4.0
@@ -558,6 +558,14 @@ packages:
   fastq@1.17.1:
     resolution: {integrity: sha512-sRVD3lWVIXWg6By68ZN7vho9a1pQcN/WBFaAAsDDFzlJjvoGx0P8z7V1t72grFJfJhu3YPZBuu25f7Kaw2jN1w==}
 
+  fdir@6.3.0:
+    resolution: {integrity: sha512-QOnuT+BOtivR77wYvCWHfGt9s4Pz1VIMbD463vegT5MLqNXy8rYFT/lPVEqf/bhYeT6qmqrNHhsX+rWwe3rOCQ==}
+    peerDependencies:
+      picomatch: ^3 || ^4
+    peerDependenciesMeta:
+      picomatch:
+        optional: true
+
   file-entry-cache@8.0.0:
     resolution: {integrity: sha512-XXTUwCvisa5oacNGRP9SfNtYBNAMi+RPwBFmblZEF7N7swHYQS6/Zfk7SRwx4D5j3CH211YNRco1DEMNVfZCnQ==}
     engines: {node: '>=16.0.0'}
@@ -929,6 +937,10 @@ packages:
     resolution: {integrity: sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==}
     engines: {node: '>=8.6'}
 
+  picomatch@4.0.2:
+    resolution: {integrity: sha512-M7BAV6Rlcy5u+m6oPhAPFgJTzAioX/6B0DxyvDlo9l8+T3nLKbrczg2WLUyzd45L8RqfUMyGPzekbMvX2Ldkwg==}
+    engines: {node: '>=12'}
+
   possible-typed-array-names@1.0.0:
     resolution: {integrity: sha512-d7Uw+eZoloe0EHDIYoe+bQ5WXnGMOpmiZFTuMWCwpjzzkL2nTjcKiAk4hh8TjnGye2TwWOk3UXucZ+3rbmBa8Q==}
     engines: {node: '>= 0.4'}
@@ -1095,6 +1107,10 @@ packages:
   text-table@0.2.0:
     resolution: {integrity: sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==}
 
+  tinyglobby@0.2.6:
+    resolution: {integrity: sha512-NbBoFBpqfcgd1tCiO8Lkfdk+xrA7mlLR9zgvZcZWQQwU63XAfUePyd6wZBaU93Hqw347lHnwFzttAkemHzzz4g==}
+    engines: {node: '>=12.0.0'}
+
   to-regex-range@5.0.1:
     resolution: {integrity: sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==}
     engines: {node: '>=8.0'}
@@ -1846,6 +1862,10 @@ snapshots:
     dependencies:
       reusify: 1.0.4
 
+  fdir@6.3.0(picomatch@4.0.2):
+    optionalDependencies:
+      picomatch: 4.0.2
+
   file-entry-cache@8.0.0:
     dependencies:
       flat-cache: 4.0.1
@@ -2203,6 +2223,8 @@ snapshots:
 
   picomatch@2.3.1: {}
 
+  picomatch@4.0.2: {}
+
   possible-typed-array-names@1.0.0: {}
 
   postcss-js@4.0.1(postcss@8.4.45):
@@ -2366,6 +2388,11 @@ snapshots:
 
   text-table@0.2.0: {}
 
+  tinyglobby@0.2.6:
+    dependencies:
+      fdir: 6.3.0(picomatch@4.0.2)
+      picomatch: 4.0.2
+
   to-regex-range@5.0.1:
     dependencies:
       is-number: 7.0.0