diff --git a/packages/@opticss/demo-app/package.json b/packages/@opticss/demo-app/package.json
index 2eebd722..0d7eddc9 100644
--- a/packages/@opticss/demo-app/package.json
+++ b/packages/@opticss/demo-app/package.json
@@ -62,7 +62,7 @@
     "mkdirp": "^0.5.1",
     "moo": "^0.5.0",
     "nearley": "^2.10.3",
-    "rimraf": "^2.6.2",
+    "rimraf": "^3.0.0",
     "source-map-support": "^0.5.3",
     "tslint": "^5.10.0",
     "typescript": "~3.4.4",