diff --git a/package/signal/package.json b/package/signal/package.json
index 39df488dd..2f20cba57 100644
--- a/package/signal/package.json
+++ b/package/signal/package.json
@@ -11,6 +11,9 @@
   "type": "module",
   "types": "signal.d.ts",
   "author": "S. Ali Mihandoost <ali.mihandoost@gmail.com> (https://ali.mihandoost.com)",
+  "contributors": [
+    "MohammadMahdi Zamanian <mm25zamanian@gmail.com>"
+  ],
   "license": "MIT",
   "files": [
     "**/*.js",
diff --git a/package/signal/src/signal.ts b/package/signal/src/signal.ts
index dfdf21e15..afc35b242 100644
--- a/package/signal/src/signal.ts
+++ b/package/signal/src/signal.ts
@@ -80,7 +80,7 @@ export function removeSignalListener<SignalName extends keyof VatrSignals>(
  */
 export function dispatchSignal<SignalName extends keyof VatrSignals>(
     signalName: SignalName,
-    value: VatrSignals[SignalName],
+    value?: VatrSignals[SignalName],
     options?: Partial<DispatchOptions>,
 ): void {
   log('dispatchSignal(%s, %o, %o)', signalName, value, options);