diff --git a/README.md b/README.md
index 60102e1..8d99e75 100644
--- a/README.md
+++ b/README.md
@@ -190,8 +190,8 @@ them.
 ## Behavior
 
 Anytime a property is set or a method is gotten and called, the container will check for an updated
-state and trigger subscribers if it is updated. An hash function must be applied to determine
-updated status.
+state and trigger subscribers if it is updated. An optional hash function may be applied to
+determine updated status. If the hash function is not supplied, every update will be propagated.
 
 ## Usage
 
diff --git a/package.json b/package.json
index 1ee960c..0ccd469 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "frptools",
-	"version": "3.2.2",
+	"version": "3.2.3",
 	"description": "Observable Property and Computed data streams",
 	"main": "src/index.js",
 	"files": [
diff --git a/src/container.js b/src/container.js
index fdeda92..e926d42 100644
--- a/src/container.js
+++ b/src/container.js
@@ -2,7 +2,7 @@ import { registerSubscriptions, registerFire } from './util.js';
 
 export function container(store, hash) {
 	let subscribers = [];
-	let id = hash(store);
+	let id = hash && hash(store);
 
 	const containerMethods = {
 		subscribe: registerSubscriptions(subscribers),
@@ -13,8 +13,8 @@ export function container(store, hash) {
 	};
 
 	function checkUpdate(target) {
-		const newId = hash(target);
-		if (id !== newId) {
+		let newId = hash && hash(target);
+		if (!hash || id !== newId) {
 			id = newId;
 			containerMethods.fire(target);
 		}