diff --git a/index.js b/index.js
index 0d8aa6b..77f53fd 100644
--- a/index.js
+++ b/index.js
@@ -7,15 +7,13 @@ module.exports = function rangeNumbers(start, end, step = 1) {
 	/* End is exclusive */
 	let i = start;
 
-	return simpleSource({
-		onRequest: () => {
-			if (i >= end) {
-				throw new EndOfStream();
-			} else {
-				let number = i;
-				i += step;
-				return number;
-			}
+	return simpleSource(() => {
+		if (i >= end) {
+			throw new EndOfStream();
+		} else {
+			let number = i;
+			i += step;
+			return number;
 		}
 	});
 };
diff --git a/yarn.lock b/yarn.lock
index cee0876..34e4533 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -17,9 +17,9 @@
     create-error "^0.3.1"
 
 "@ppstreams/simple-source@^0.1.0":
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/@ppstreams/simple-source/-/simple-source-0.1.0.tgz#8d0cd546f1752a565da5ef4767a4e08f93a9143d"
-  integrity sha512-uoIzWFfU3oaptibd3JnqDOVTBzbrUKu2DpnUAjvnUEn6qM18ghoKWNtpAX4mGGqMl7huYUhABpB7YpILvpBwng==
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/@ppstreams/simple-source/-/simple-source-0.1.1.tgz#a8f276f2b6a27632edc0f123dc64c183414c4f9e"
+  integrity sha512-q0jpPZSGmld9VIhM+GmMRqwE9PXRiEJSXf3jhypf5VqiEs1JfrSNENvFeLYL/OxaF5PV+Jh0Up1hRfBWVK4+Sw==
   dependencies:
     "@ppstreams/aborted" "^0.1.0"
     "@validatem/core" "^0.3.12"