diff --git a/package.json b/package.json
index 1ac59fb6..f856c75e 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "parcel": "parcel ./src/index.html --public-url / --no-autoinstall -- watch",
     "parcel-build": "parcel build ./src/index.html --no-source-maps --no-autoinstall",
     "server": "moduleserve ./ --port 8000",
-    "predeploy": "parcel build ./src/index.html --no-source-maps --no-autoinstall",
+    "predeploy": "yarn build && parcel build ./src/index.html --no-source-maps --no-autoinstall",
     "deploy": "gh-pages -d dist",
     "test": "echo \"Error: no test specified\" && exit 1"
   },