diff --git a/package.json b/package.json
index d584c0f..0c33672 100644
--- a/package.json
+++ b/package.json
@@ -4,8 +4,8 @@
   "type": "module",
   "description": "Orbital Object Toolkit. A modern typed replacement for satellite.js including SGP4 propagation, TLE parsing, Sun and Moon calculations, and more.",
   "scripts": {
-    "js": "ttsc -p tsconfig.build.json -m esnext",
-    "cjs": "ttsc -p tsconfig.c.json -m commonjs",
+    "js": "npx ttsc -p tsconfig.build.json -m esnext",
+    "cjs": "npx ttsc -p tsconfig.c.json -m commonjs",
     "build": "node ./scripts/cleanup.mjs && npm run js && npm run cjs && node ./scripts/makeMjs.mjs",
     "lint": "npx eslint src",
     "lint:fix": "npx eslint src --fix",
@@ -60,4 +60,4 @@
     "typescript-transform-paths": "^3.4.6"
   },
   "homepage": "https://github.com/thkruz/ootk"
-}
+}
\ No newline at end of file