diff --git a/packages/ember-simple-auth/addon/services/session.js b/packages/ember-simple-auth/addon/services/session.js
index a4dea4eeb..665a0ea38 100644
--- a/packages/ember-simple-auth/addon/services/session.js
+++ b/packages/ember-simple-auth/addon/services/session.js
@@ -1,9 +1,7 @@
 import { alias, readOnly } from '@ember/object/computed';
-import { A } from '@ember/array';
 import Service from '@ember/service';
-import Evented from '@ember/object/evented';
 import { getOwner } from '@ember/application';
-import { assert, deprecate } from '@ember/debug';
+import { assert } from '@ember/debug';
 import Configuration from '../configuration';
 
 import {
@@ -16,20 +14,6 @@ import {
 
 const SESSION_DATA_KEY_PREFIX = /^data\./;
 
-let enableEventsDeprecation = true;
-function deprecateSessionEvents() {
-  if (enableEventsDeprecation) {
-    deprecate("Ember Simple Auth: The session service's events API is deprecated; to add custom behavior to the authentication or invalidation handling, override the handleAuthentication or handleInvalidation methods.", false, {
-      id: 'ember-simple-auth.events.session-service',
-      until: '4.0.0',
-      for: 'ember-simple-auth',
-      since: {
-        enabled: '3.1.0'
-      }
-    });
-  }
-}
-
 function assertSetupHasBeenCalled(isSetupCalled) {
   if (!isSetupCalled) {
     assert("Ember Simple Auth: session#setup wasn't called. Make sure to call session#setup in your application route's beforeModel hook.", false);
@@ -54,10 +38,9 @@ function assertSetupHasBeenCalled(isSetupCalled) {
   @class SessionService
   @module ember-simple-auth/services/session
   @extends Ember.Service
-  @uses Ember.Evented
   @public
 */
-export default Service.extend(Evented, {
+export default Service.extend({
   /**
     Triggered whenever the session is successfully authenticated. This happens
     when the session gets authenticated via
@@ -140,7 +123,6 @@ export default Service.extend(Evented, {
   init() {
     this._super(...arguments);
     this.set('session', getOwner(this).lookup('session:main'));
-    this._forwardSessionEvents();
   },
 
   set(key, value) {
@@ -153,53 +135,6 @@ export default Service.extend(Evented, {
     }
   },
 
-  _forwardSessionEvents() {
-    A([
-      'authenticationSucceeded',
-      'invalidationSucceeded'
-    ]).forEach((event) => {
-      const session = this.get('session');
-      // the internal session won't be available in route unit tests
-      if (session) {
-        session.on(event, () => {
-          enableEventsDeprecation = false;
-          this.trigger(event, ...arguments);
-          enableEventsDeprecation = true;
-        });
-      }
-    });
-  },
-
-  on() {
-    deprecateSessionEvents();
-
-    return this._super(...arguments);
-  },
-
-  one() {
-    deprecateSessionEvents();
-
-    return this._super(...arguments);
-  },
-
-  off() {
-    deprecateSessionEvents();
-
-    return this._super(...arguments);
-  },
-
-  has() {
-    deprecateSessionEvents();
-
-    return this._super(...arguments);
-  },
-
-  trigger() {
-    deprecateSessionEvents();
-
-    return this._super(...arguments);
-  },
-
   _setupHandlers() {
     this.get('session').on('authenticationSucceeded', () => this.handleAuthentication(Configuration.routeAfterAuthentication));
     this.get('session').on('invalidationSucceeded', () => this.handleInvalidation(Configuration.rootURL));
diff --git a/packages/ember-simple-auth/tests/unit/services/session-test.js b/packages/ember-simple-auth/tests/unit/services/session-test.js
index c3da8e1cd..3b700d731 100644
--- a/packages/ember-simple-auth/tests/unit/services/session-test.js
+++ b/packages/ember-simple-auth/tests/unit/services/session-test.js
@@ -31,72 +31,6 @@ module('SessionService', function(hooks) {
     sinon.restore();
   });
 
-  test('forwards the "authenticationSucceeded" event from the session', async function(assert) {
-    assert.expect(2);
-    let deprecations = [];
-    registerDeprecationHandler((message, options, next) => {
-      deprecations.push(message);
-
-      next(message, options);
-    });
-    let triggered = false;
-    sinon.stub(sessionService, 'handleAuthentication');
-    sessionService.one('authenticationSucceeded', () => (triggered = true));
-    session.trigger('authenticationSucceeded');
-
-    await new Promise(resolve => {
-      next(() => {
-        assert.ok(triggered);
-        assert.equal(deprecations.filter(deprecation => deprecation.includes('Ember Simple Auth:')).length, 1); // the call to .one above triggers a deprecation but forwarding the event should *not* trigger a deprecation
-        resolve();
-      });
-    });
-  });
-
-  test('forwards the "invalidationSucceeded" event from the session', async function(assert) {
-    assert.expect(2);
-    let deprecations = [];
-    registerDeprecationHandler((message, options, next) => {
-      deprecations.push(message);
-
-      next(message, options);
-    });
-    let triggered = false;
-    sessionService.one('invalidationSucceeded', () => (triggered = true));
-    session.trigger('invalidationSucceeded');
-
-    await new Promise(resolve => {
-      next(() => {
-        assert.ok(triggered);
-        assert.equal(deprecations.filter(deprecation => deprecation.includes('Ember Simple Auth:')).length, 1); // the call to .one above triggers a deprecation but forwarding the event should *not* trigger a deprecation
-        resolve();
-      });
-    });
-  });
-
-  test('deprecates using the "Evented" API', function(assert) {
-    assert.expect(6);
-    let deprecations = [];
-    registerDeprecationHandler((message, options, next) => {
-      deprecations.push(message);
-
-      next(message, options);
-    });
-
-    let handler = () => {};
-    sessionService.trigger('invalidationSucceeded');
-    sessionService.on('invalidationSucceeded', handler);
-    sessionService.off('invalidationSucceeded', handler);
-    sessionService.has('invalidationSucceeded');
-    sessionService.one('invalidationSucceeded', handler);
-
-    let emberSimpleAuthDeprecations = deprecations.filter(deprecation => deprecation.includes('Ember Simple Auth:'));
-    assert.equal(emberSimpleAuthDeprecations.length, 5);
-    for (let deprecation of emberSimpleAuthDeprecations) {
-      assert.equal(deprecation, "Ember Simple Auth: The session service's events API is deprecated; to add custom behavior to the authentication or invalidation handling, override the handleAuthentication or handleInvalidation methods.");
-    }
-  });
-
   module('isAuthenticated', function() {
     test('is read from the session', function(assert) {
       session.set('isAuthenticated', true);