diff --git a/package.json b/package.json
index 2b7ee4e..d7a3dcc 100644
--- a/package.json
+++ b/package.json
@@ -5,13 +5,13 @@
   "main": "index.js",
   "scripts": {
     "build:cljs": "shadow-cljs release app",
-    "build:sass": "node-sass --output-style compressed src/sass/app.sass | postcss > public/app/style.css",
+    "build:sass": "node-sass --output-style compressed src/sass/app.sass | postcss -o public/app/style.css",
     "build": "rm -r public/*; run-p copy:* build:*",
     "copy:assets": "cp -R src/assets/* public/",
     "copy:icons": "cp -R node_modules/open-iconic/font/fonts public",
     "deploy": "npm run build && gh-pages -d public -m \"Deploying $(git rev-parse --short HEAD)\"",
     "dev:cljs": "shadow-cljs watch app test",
-    "dev:sass": "npm run build:sass; node-sass -w src/sass/app.sass | postcss > public/app/style.css",
+    "dev:sass": "npm run build:sass; node-sass -w src/sass/app.sass | postcss -o public/app/style.css",
     "dev:test": "karma start --reporters notify,progress --auto-watch",
     "dev": "rm -r public/*; npm-run-all copy:* test:compile -p dev:*",
     "test": "run-s test:compile test:run",