diff --git a/package.json b/package.json
index 10a900edf..e0ed05bbd 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "gulp-css-inline-images": "^0.1.1",
     "gulp-csso": "1.0.0",
     "gulp-file": "^0.2.0",
-    "gulp-flatten": "^0.2.0",
+    "gulp-flatten": "^0.3.1",
     "gulp-front-matter": "^1.2.2",
     "gulp-header": "^1.2.2",
     "gulp-if": "^2.0.0",