diff --git a/package.json b/package.json
index ed37be8b..40de6b03 100644
--- a/package.json
+++ b/package.json
@@ -124,9 +124,9 @@
     "freezer": "webpack --config=./webpack_config/webpack.freezer.js && node ./dist/freezer.js",
     "freezer:validate": "npm run freezer -- --validate",
     "db": "nodemon ./db",
-    "build": "webpack --config webpack_config/webpack.prod.js",
+    "build": "rimraf dist && webpack --config webpack_config/webpack.prod.js",
     "prebuild": "check-node-version --package",
-    "build:downloadable": "BUILD_DOWNLOADABLE=true webpack --config webpack_config/webpack.prod.js",
+    "build:downloadable": "BUILD_DOWNLOADABLE=true rimraf dist && webpack --config webpack_config/webpack.prod.js",
     "prebuild:demo": "check-node-version --package",
     "test:coverage": "jest --config=jest_config/jest.config.json --coverage",
     "test": "jest --config=jest_config/jest.config.json",