diff --git a/shared/package.json b/shared/package.json
index 6a5e626..94f9c6d 100644
--- a/shared/package.json
+++ b/shared/package.json
@@ -2,6 +2,7 @@
 	"name": "bwcontest-shared",
 	"scripts": {
 		"build": "esbuild submission-runner/*.cts --bundle --outdir=build/submission-runner --format=cjs --platform=node --sourcemap",
+		"watch": "esbuild submission-runner/*.cts --bundle --outdir=build/submission-runner --format=cjs --platform=node --sourcemap --watch",
 		"format": "prettier --write .",
 		"lint": "prettier --check . && eslint .",
 		"check": "tsc -noEmit"