diff --git a/package-lock.json b/package-lock.json
index d1e9b9b..8f69a44 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "express-status-monitor",
-  "version": "1.2.11",
+  "version": "1.3.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1340,6 +1340,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/event-loop-stats/-/event-loop-stats-1.2.0.tgz",
       "integrity": "sha512-h/leAlXqoEf+D9w1dnFG0srR5vfIq59rLm9PHzcl3/GwFppd+UR46UMuLdp/mvJvuA+MjSd/dNShmuM2/dPFFw==",
+      "optional": true,
       "requires": {
         "nan": "^2.14.0"
       }
@@ -2486,7 +2487,8 @@
     "nan": {
       "version": "2.14.0",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
-      "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
+      "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==",
+      "optional": true
     },
     "natural-compare": {
       "version": "1.4.0",
diff --git a/package.json b/package.json
index e5efdc8..2fcd559 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "express-status-monitor",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Realtime Monitoring for Express-based Node applications",
   "main": "index.js",
   "keywords": [
@@ -59,12 +59,14 @@
   "dependencies": {
     "axios": "0.19.2",
     "debug": "4.1.1",
-    "event-loop-stats": "1.2.0",
     "handlebars": "^4.7.6",
     "on-headers": "1.0.2",
     "pidusage": "2.0.18",
     "socket.io": "2.3.0"
   },
+  "optionalDependencies": {
+    "event-loop-stats": "1.2.0"
+  },
   "scripts": {
     "test-ci": "mocha --recursive",
     "test": "mocha --recursive --watch",
@@ -80,4 +82,4 @@
     "snyk": "1.305.0"
   },
   "snyk": true
-}
\ No newline at end of file
+}
diff --git a/src/helpers/gather-os-metrics.js b/src/helpers/gather-os-metrics.js
index a279e23..c886a02 100644
--- a/src/helpers/gather-os-metrics.js
+++ b/src/helpers/gather-os-metrics.js
@@ -1,10 +1,17 @@
 const pidusage = require('pidusage');
 const os = require('os');
 const v8 = require('v8');
-const eventLoopStats = require('event-loop-stats');
 const sendMetrics = require('./send-metrics');
 const debug = require('debug')('express-status-monitor');
 
+let eventLoopStats; // eslint-disable-line
+
+try {
+  eventLoopStats = require('event-loop-stats'); // eslint-disable-line
+} catch (error) {
+  console.warn('event-loop-stats not found, ignoring event loop metrics...');
+}
+
 module.exports = (io, span) => {
   const defaultResponse = {
     2: 0,
@@ -29,7 +36,10 @@ module.exports = (io, span) => {
     stat.load = os.loadavg();
     stat.timestamp = Date.now();
     stat.heap = v8.getHeapStatistics();
-    stat.loop = eventLoopStats.sense();
+
+    if (eventLoopStats) {
+      stat.loop = eventLoopStats.sense();
+    }
 
     span.os.push(stat);
     if (!span.responses[0] || (last.timestamp + span.interval) * 1000 < Date.now()) {