diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8a9999bd..853e882a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: cimg/node:12.22
+      - image: cimg/node:14.20
     steps:
       - checkout
 
diff --git a/.eslintrc.yaml b/.eslintrc.yaml
index 5b7ce5ef..3c751332 100644
--- a/.eslintrc.yaml
+++ b/.eslintrc.yaml
@@ -1,5 +1,5 @@
 ---
-  parser: babel-eslint
+  parser: "@babel/eslint-parser"
   root: true
   extends:
     - prettier
diff --git a/jest.config.js b/jest.config.js
index aa175c59..05de06a1 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -7,11 +7,14 @@ module.exports = {
   setupFiles: ['jest-localstorage-mock', './jest.setup.js'],
   testMatch: ['**/__tests__/**/*-test.js'],
   transform: {
-    '^.+\\.js$': 'babel-jest',
+    '^.+\\.js$': ['babel-jest', { rootMode: 'upward' }],
   },
   globals: {
     window: true,
     VERSION: version,
   },
-  testURL: 'https://mydomain.com/some/path',
+  testEnvironmentOptions: {
+    url: 'https://mydomain.com/some/path',
+  },
+  testEnvironment: 'jsdom',
 };
diff --git a/package.json b/package.json
index 1a064d61..dd7fd77f 100644
--- a/package.json
+++ b/package.json
@@ -41,46 +41,43 @@
     "prepublishOnly": "npm run build:min"
   },
   "devDependencies": {
-    "@babel/cli": "^7.11.6",
-    "@babel/core": "^7.11.6",
-    "@babel/plugin-transform-regenerator": "7.10.4",
-    "@babel/plugin-transform-runtime": "7.11.5",
-    "@babel/preset-env": "^7.11.5",
-    "@babel/runtime": "^7.11.2",
-    "@rollup/plugin-node-resolve": "^6.0.0",
-    "@rollup/plugin-replace": "^2.2.0",
-    "babel-eslint": "^10.1.0",
-    "babel-jest": "^26.3.0",
-    "chai": "^4.1.2",
-    "cross-env": "^5.1.4",
-    "eslint": "^6.8.0",
-    "eslint-config-prettier": "^2.9.0",
-    "eslint-config-xo": "^0.20.1",
-    "eslint-formatter-pretty": "^1.3.0",
-    "eslint-plugin-babel": "^5.0.0",
-    "eslint-plugin-prettier": "^2.6.0",
-    "jest": "^26.6.3",
-    "jest-junit": "^11.1.0",
-    "jest-localstorage-mock": "^2.4.3",
-    "jsdom": "^11.12.0",
-    "prettier": "1.11.1",
-    "readline-sync": "1.4.9",
+    "@babel/cli": "^7.19.3",
+    "@babel/core": "^7.19.3",
+    "@babel/eslint-parser": "7.19.1",
+    "@babel/plugin-transform-regenerator": "7.18.6",
+    "@babel/plugin-transform-runtime": "7.19.1",
+    "@babel/preset-env": "^7.19.3",
+    "@babel/runtime": "^7.19.0",
+    "@rollup/plugin-node-resolve": "^14.1.0",
+    "@rollup/plugin-replace": "^4.0.0",
+    "babel-jest": "^29.1.0",
+    "cross-env": "^7.0.3",
+    "eslint": "^8.24.0",
+    "eslint-config-prettier": "^8.5.0",
+    "eslint-config-xo": "^0.42.0",
+    "eslint-formatter-pretty": "^4.1.0",
+    "eslint-plugin-babel": "^5.3.1",
+    "eslint-plugin-prettier": "^4.2.1",
+    "jest": "^29.1.1",
+    "jest-environment-jsdom": "^29.1.1",
+    "jest-junit": "^14.0.1",
+    "jest-localstorage-mock": "^2.4.22",
+    "jsdom": "^20.0.0",
+    "prettier": "2.7.1",
     "rimraf": "^3.0.2",
-    "rollup": "^1.26.0",
-    "rollup-plugin-babel": "^4.3.3",
+    "rollup": "^2.79.1",
+    "rollup-plugin-babel": "^4.4.0",
     "rollup-plugin-commonjs": "^10.1.0",
-    "rollup-plugin-filesize": "^6.2.1",
+    "rollup-plugin-filesize": "^9.1.2",
     "rollup-plugin-node-globals": "^1.4.0",
     "rollup-plugin-terser": "^7.0.2",
-    "rollup-plugin-uglify": "^6.0.4",
-    "semver": "^7.1.3",
-    "semver-compare": "^1.0.0",
-    "sinon": "7.2.7",
-    "typescript": "^3.7.5"
+    "sinon": "^14.0.0",
+    "typescript": "^4.8.4",
+    "@types/estree": "^1.0.0"
   },
   "dependencies": {
-    "escape-string-regexp": "^1.0.5",
-    "launchdarkly-js-sdk-common": "3.6.0"
+    "escape-string-regexp": "^4.0.0",
+    "launchdarkly-js-sdk-common": "3.7.0"
   },
   "repository": {
     "type": "git",
diff --git a/rollup.config.js b/rollup.config.js
index bd4ea49b..44dedbfd 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,10 +1,9 @@
 const pkg = require('./package.json');
-const resolve = require('@rollup/plugin-node-resolve');
+const { nodeResolve } = require('@rollup/plugin-node-resolve');
 const commonjs = require('rollup-plugin-commonjs');
 const babel = require('rollup-plugin-babel');
 const replace = require('@rollup/plugin-replace');
 const { terser } = require('rollup-plugin-terser');
-const { uglify } = require('rollup-plugin-uglify');
 const filesize = require('rollup-plugin-filesize');
 
 const env = process.env.NODE_ENV || 'development';
@@ -17,7 +16,7 @@ const basePlugins = [
     'process.env.NODE_ENV': JSON.stringify(env),
     VERSION: JSON.stringify(version),
   }),
-  resolve({
+  nodeResolve({
     mainFields: ['browser', 'module', 'main'],
     preferBuiltins: true,
   }),
@@ -29,12 +28,6 @@ const basePlugins = [
 ];
 
 const plugins = env === 'production' ?
-  basePlugins.concat(
-    uglify()
-  ) :
-  basePlugins;
-
-const esPlugins = env === 'production' ?
   basePlugins.concat(
     terser()
   ) : basePlugins;
@@ -66,7 +59,7 @@ const configs = [
       format: 'es',
       sourcemap: true,
     },
-    plugins: esPlugins,
+    plugins: plugins,
   },
 ];
 
diff --git a/src/GoalManager.js b/src/GoalManager.js
index 28cfd114..87b57d04 100644
--- a/src/GoalManager.js
+++ b/src/GoalManager.js
@@ -75,7 +75,7 @@ export default function GoalManager(clientVars, readyCallback) {
 
   clientVars.requestor
     .fetchJSON(getGoalsPath())
-    .then(g => {
+    .then((g) => {
       if (g && g.length > 0) {
         goals = g;
         goalTracker = GoalTracker(goals, sendGoalEvent);
@@ -83,7 +83,7 @@ export default function GoalManager(clientVars, readyCallback) {
       }
       readyCallback();
     })
-    .catch(err => {
+    .catch((err) => {
       clientVars.emitter.maybeReportError(
         new common.errors.LDUnexpectedResponseError('Error fetching goals: ' + (err && err.message) ? err.message : err)
       );
diff --git a/src/GoalTracker.js b/src/GoalTracker.js
index 7bc1311a..fa9fb63d 100644
--- a/src/GoalTracker.js
+++ b/src/GoalTracker.js
@@ -75,7 +75,7 @@ export default function GoalTracker(goals, onEvent) {
   }
 
   if (clickGoals.length > 0) {
-    listenerFn = function(event) {
+    listenerFn = function (event) {
       const goals = findGoalsForClick(event, clickGoals);
       for (let i = 0; i < goals.length; i++) {
         onEvent('click', goals[i]);
@@ -85,7 +85,7 @@ export default function GoalTracker(goals, onEvent) {
     document.addEventListener('click', listenerFn);
   }
 
-  tracker.dispose = function() {
+  tracker.dispose = function () {
     document.removeEventListener('click', listenerFn);
   };
 
diff --git a/src/__tests__/LDClient-events-test.js b/src/__tests__/LDClient-events-test.js
index d4ae18ae..919fd0d6 100644
--- a/src/__tests__/LDClient-events-test.js
+++ b/src/__tests__/LDClient-events-test.js
@@ -17,10 +17,10 @@ describe('LDClient', () => {
   describe('event generation', () => {
     function stubEventProcessor() {
       const ep = { events: [] };
-      ep.start = function() {};
-      ep.flush = function() {};
-      ep.stop = function() {};
-      ep.enqueue = function(e) {
+      ep.start = function () {};
+      ep.flush = function () {};
+      ep.stop = function () {};
+      ep.enqueue = function (e) {
         ep.events.push(e);
       };
       return ep;
@@ -65,7 +65,7 @@ describe('LDClient', () => {
       const client = LDClient.initialize(envName, user, {
         eventProcessor: ep,
         bootstrap: {},
-        eventUrlTransformer: url => url + suffix,
+        eventUrlTransformer: (url) => url + suffix,
       });
       await client.waitForInitialization();
       client.track('eventkey');
diff --git a/src/__tests__/LDClient-test.js b/src/__tests__/LDClient-test.js
index 316038c1..0c195e52 100644
--- a/src/__tests__/LDClient-test.js
+++ b/src/__tests__/LDClient-test.js
@@ -116,7 +116,7 @@ describe('LDClient', () => {
       expect(server.requests[0].url).toMatch(/sdk\/eval/);
     });
 
-    it('should resolve waitUntilGoalsReady when goals are loaded', done => {
+    it('should resolve waitUntilGoalsReady when goals are loaded', (done) => {
       const handleGoalsReady = jest.fn();
       const client = LDClient.initialize(envName, user, { bootstrap: {}, sendEvents: false });
 
diff --git a/src/__tests__/browserPlatform-test.js b/src/__tests__/browserPlatform-test.js
index 659188c4..f6733089 100644
--- a/src/__tests__/browserPlatform-test.js
+++ b/src/__tests__/browserPlatform-test.js
@@ -95,7 +95,7 @@ describe('browserPlatform', () => {
     });
 
     it('calls URL transformer if specified', () => {
-      const p = browserPlatform({ eventUrlTransformer: url => url + '/x' });
+      const p = browserPlatform({ eventUrlTransformer: (url) => url + '/x' });
       expect(p.getCurrentUrl()).toEqual(expectedUrl + '/x');
     });
   });
diff --git a/src/__tests__/internal-test.js b/src/__tests__/internal-test.js
index db83e5a6..dbc5a128 100644
--- a/src/__tests__/internal-test.js
+++ b/src/__tests__/internal-test.js
@@ -1,12 +1,12 @@
 import { doesUrlMatch } from '../GoalTracker';
 
 describe('url matching', () => {
-  const getHash = url => {
+  const getHash = (url) => {
     const idx = url.indexOf('#');
     return idx === -1 ? '' : url.substring(idx, url.length);
   };
 
-  const getSearch = url => {
+  const getSearch = (url) => {
     const idx = url.indexOf('?');
     return idx === -1 ? '' : url.substring(idx, url.length);
   };
@@ -208,9 +208,9 @@ describe('url matching', () => {
     },
   ];
 
-  tests.forEach(method => {
+  tests.forEach((method) => {
     describe(method.type + ' matching', () => {
-      method.tests.forEach(each => {
+      method.tests.forEach((each) => {
         it(`expects \`${each.goal}\` to ${each.match ? 'match' : 'not match'} \`${each.path}\``, async () => {
           method.matcher(each.path, each.goal).toEqual(each.match);
         });
diff --git a/src/browserPlatform.js b/src/browserPlatform.js
index 3147783e..f2da795e 100644
--- a/src/browserPlatform.js
+++ b/src/browserPlatform.js
@@ -25,7 +25,7 @@ export default function makeBrowserPlatform(options) {
   };
 
   // Image-based mechanism for sending events if POST isn't available
-  ret.httpFallbackPing = url => {
+  ret.httpFallbackPing = (url) => {
     const img = new window.Image();
     img.src = url;
   };
@@ -48,17 +48,17 @@ export default function makeBrowserPlatform(options) {
   try {
     if (window.localStorage) {
       ret.localStorage = {
-        get: key =>
-          new Promise(resolve => {
+        get: (key) =>
+          new Promise((resolve) => {
             resolve(window.localStorage.getItem(key));
           }),
         set: (key, value) =>
-          new Promise(resolve => {
+          new Promise((resolve) => {
             window.localStorage.setItem(key, value);
             resolve();
           }),
-        clear: key =>
-          new Promise(resolve => {
+        clear: (key) =>
+          new Promise((resolve) => {
             window.localStorage.removeItem(key);
             resolve();
           }),
@@ -116,7 +116,7 @@ export default function makeBrowserPlatform(options) {
       return new eventSourceConstructor(url, esOptions);
     };
 
-    ret.eventSourceIsActive = es =>
+    ret.eventSourceIsActive = (es) =>
       es.readyState === window.EventSource.OPEN || es.readyState === window.EventSource.CONNECTING;
   }
 
diff --git a/src/httpRequest.js b/src/httpRequest.js
index 6d71260f..be2ec435 100644
--- a/src/httpRequest.js
+++ b/src/httpRequest.js
@@ -43,7 +43,7 @@ export default function newHttpRequest(method, url, headers, body, pageIsClosing
         }
         resolve({
           status: xhr.status,
-          header: key => xhr.getResponseHeader(key),
+          header: (key) => xhr.getResponseHeader(key),
           body: xhr.responseText,
         });
       });
diff --git a/src/index.js b/src/index.js
index cb73d7c0..e4084c84 100644
--- a/src/index.js
+++ b/src/index.js
@@ -21,7 +21,7 @@ export function initialize(env, user, options = {}) {
   const validatedOptions = clientVars.options;
   const emitter = clientVars.emitter;
 
-  const goalsPromise = new Promise(resolve => {
+  const goalsPromise = new Promise((resolve) => {
     const onGoals = emitter.on(goalsEvent, () => {
       emitter.off(goalsEvent, onGoals);
       resolve();