diff --git a/Cargo.toml b/Cargo.toml
index 99e2c86..499a453 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "solar-sim"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["Ben Plate <bplate9583@gmail.com>"]
 edition = "2018"
 description = "Physics simulator written in Rust WASM for use in Solar Sim website"
diff --git a/website-src/index.js b/website-src/index.js
index ca315ab..8d8f701 100644
--- a/website-src/index.js
+++ b/website-src/index.js
@@ -97,6 +97,7 @@ const canvas2 = document.getElementById("trails");
 const ctx = canvas.getContext("2d");
 const ctx2 = canvas2.getContext("2d");
 
+let playing = true;
 let tickTime = performance.now();
 
 function step(simulate) {
@@ -145,20 +146,17 @@ function step(simulate) {
 
     if(debug && count % 10 == 0) drawTickTimeElem.innerHTML = Math.round((performance.now() - tickTime) * 1000);
 
-    window.requestAnimationFrame(step);
+    if(playing) window.requestAnimationFrame(step);
 }
 
-let playing = true;
-
 const toggleButton = document.getElementById("toggle");
 
 toggleButton.addEventListener("click", (elem, e) => {
     if(playing) {
-        clearInterval(proc);
         toggleButton.innerHTML = "Play";
     } else {
-        proc = setInterval(() => step(true), 10);
         toggleButton.innerHTML = "Pause";
+        window.requestAnimationFrame(step);
     }
     playing = !playing;
 });
diff --git a/website-src/package-lock.json b/website-src/package-lock.json
index 1b88fa4..434fc7d 100644
--- a/website-src/package-lock.json
+++ b/website-src/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "solar-sim-app",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "solar-sim-app",
-      "version": "0.3.0",
+      "version": "0.3.1",
       "license": "MIT",
       "dependencies": {
         "solar-sim": "file:../pkg"
diff --git a/website-src/package.json b/website-src/package.json
index edf22c9..6649768 100644
--- a/website-src/package.json
+++ b/website-src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "solar-sim-app",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "Creates the Solar Sim website.",
   "main": "index.js",
   "scripts": {