diff --git a/package.json b/package.json
index 2fd3c7c00..462310b94 100644
--- a/package.json
+++ b/package.json
@@ -93,7 +93,7 @@
     "eslint": "^8.8.0",
     "fetch-mock": "^9.11.0",
     "gaze": "^1.1.3",
-    "glob": "^8.0.3",
+    "glob": "^9.2.1",
     "happen": "^0.3.2",
     "js-yaml": "^4.0.0",
     "json-stringify-pretty-compact": "^3.0.0",
diff --git a/scripts/build_css.js b/scripts/build_css.js
index 1dc7663a1..22ffe6452 100644
--- a/scripts/build_css.js
+++ b/scripts/build_css.js
@@ -29,8 +29,8 @@ function buildCSS() {
 
   return _currBuild =
     Promise.resolve()
-      .then(() => doGlob('css/**/*.css'))
-      .then(files => doConcat(files, 'dist/iD.css'))
+      .then(() => glob('css/**/*.css'))
+      .then(files => doConcat(files.sort(), 'dist/iD.css'))
       .then(() => {
         const css = fs.readFileSync('dist/iD.css', 'utf8');
         return postcss([
@@ -54,15 +54,6 @@ function buildCSS() {
 }
 
 
-function doGlob(pattern) {
-  return new Promise((resolve, reject) => {
-    glob(pattern, (err, files) => {
-      if (err) return reject(err);
-      resolve(files);
-    });
-  });
-}
-
 function doConcat(files, output) {
   return new Promise((resolve, reject) => {
     concat(files, output, (err) => {