diff --git a/package.json b/package.json
index 69e5c7c..46ade5d 100644
--- a/package.json
+++ b/package.json
@@ -43,9 +43,13 @@
     "rimraf": "^4.4.0",
     "secret-handshake-ext": "~0.0.11",
     "secret-stack": "~8.1.0",
-    "ssb-box": "^1.0.1"
+    "ssb-box": "^1.0.1",
+    "typescript": "^5.4.5"
   },
   "scripts": {
+    "clean-check": "tsc --build --clean",
+    "prepublishOnly": "npm run clean-check && tsc --build",
+    "postpublish": "npm run clean-check",
     "test": "node --test",
     "format-code": "prettier --write \"(lib|test)/**/*.js\"",
     "format-code-staged": "pretty-quick --staged --pattern \"(lib|test)/**/*.js\"",