diff --git a/package.json b/package.json
index 710a307ad..32d7869ec 100644
--- a/package.json
+++ b/package.json
@@ -92,7 +92,7 @@
     "proxyquire": "^2.0.0",
     "sinon": "^7.1.1",
     "source-map-support": "^0.5.9",
-    "typescript": "~3.1.5"
+    "typescript": "~3.2.0"
   },
   "nyc": {
     "exclude": [
diff --git a/src/iam.ts b/src/iam.ts
index 006976226..e55e882d7 100644
--- a/src/iam.ts
+++ b/src/iam.ts
@@ -21,11 +21,8 @@
 import {promisifyAll} from '@google-cloud/promisify';
 import * as arrify from 'arrify';
 import {CallOptions} from 'google-gax';
-import * as is from 'is';
-import * as r from 'request';
 import {PubSub} from '.';
 
-
 /**
  * @callback GetPolicyCallback
  * @param {?Error} err Request error, if any.
@@ -175,7 +172,8 @@ export class IAM {
       this.Promise = pubsub.Promise;
     }
     this.pubsub = pubsub;
-    this.request = pubsub.request.bind(pubsub);
+    // tslint:disable-next-line no-any
+    this.request = pubsub.request.bind(pubsub) as any;
     this.id = id;
   }
 
diff --git a/src/subscriber.ts b/src/subscriber.ts
index 56a845b31..a193261c7 100644
--- a/src/subscriber.ts
+++ b/src/subscriber.ts
@@ -264,7 +264,8 @@ export class Subscriber extends EventEmitter {
           deadline =>
               this.modifyAckDeadline_(modAcks[deadline], Number(deadline)));
 
-      requests.push.apply(requests, modAckRequests);
+      // tslint:disable-next-line no-any
+      requests.push.apply(requests, modAckRequests as any);
 
       Promise.all(modAckRequests).then(() => {
         this.inventory_.nack = [];
diff --git a/src/topic.ts b/src/topic.ts
index 33f48c910..862bc70ed 100644
--- a/src/topic.ts
+++ b/src/topic.ts
@@ -71,7 +71,8 @@ export class Topic {
      * @type {PubSub}
      */
     this.parent = this.pubsub = pubsub;
-    this.request = pubsub.request.bind(pubsub);
+    // tslint:disable-next-line no-any
+    this.request = pubsub.request.bind(pubsub) as any;
     /**
      * [IAM (Identity and Access
      * Management)](https://cloud.google.com/pubsub/access_control) allows you
diff --git a/test/subscriber.ts b/test/subscriber.ts
index b597f0557..93a250d2b 100644
--- a/test/subscriber.ts
+++ b/test/subscriber.ts
@@ -47,14 +47,14 @@ class FakeConnectionPool extends EventEmitter {
   calledWith_: IArguments;
   constructor() {
     super();
-    this.calledWith_ = [].slice.call(arguments);
+    this.calledWith_ = arguments;
   }
 }
 
 class FakeHistogram {
   calledWith_: IArguments;
   constructor() {
-    this.calledWith_ = [].slice.call(arguments);
+    this.calledWith_ = arguments;
   }
 }
 // tslint:disable-next-line no-any
diff --git a/test/subscription.ts b/test/subscription.ts
index 868aa734b..113ff4ed9 100644
--- a/test/subscription.ts
+++ b/test/subscription.ts
@@ -35,7 +35,7 @@ const fakePromisify = Object.assign({}, pfy, {
 class FakeIAM {
   calledWith_: IArguments;
   constructor() {
-    this.calledWith_ = [].slice.call(arguments);
+    this.calledWith_ = arguments;
   }
 }
 
@@ -43,14 +43,14 @@ class FakeSnapshot {
   calledWith_: IArguments;
   static formatName_?: Function;
   constructor() {
-    this.calledWith_ = [].slice.call(arguments);
+    this.calledWith_ = arguments;
   }
 }
 
 class FakeSubscriber {
   calledWith_: IArguments;
   constructor() {
-    this.calledWith_ = [].slice.call(arguments);
+    this.calledWith_ = arguments;
   }
 }
 
@@ -149,9 +149,7 @@ describe('Subscription', () => {
 
     it('should create an IAM object', () => {
       assert(subscription.iam instanceof FakeIAM);
-
       const args = subscription.iam.calledWith_;
-
       assert.strictEqual(args[0], PUBSUB);
       assert.strictEqual(args[1], subscription.name);
     });
@@ -159,7 +157,6 @@ describe('Subscription', () => {
     it('should inherit from Subscriber', () => {
       const options = {};
       const subscription = new Subscription(PUBSUB, SUB_NAME, options);
-
       assert(subscription instanceof FakeSubscriber);
       assert.strictEqual(subscription.calledWith_[0], options);
     });
diff --git a/test/topic.ts b/test/topic.ts
index 34d62123c..b335ce6f9 100644
--- a/test/topic.ts
+++ b/test/topic.ts
@@ -33,16 +33,20 @@ const fakePromisify = Object.assign({}, pfy, {
 });
 
 class FakeIAM {
-  calledWith_: IArguments;
-  constructor() {
-    this.calledWith_ = [].slice.call(arguments);
+  // tslint:disable-next-line no-any
+  calledWith_: any[];
+  // tslint:disable-next-line no-any
+  constructor(...args: any[]) {
+    this.calledWith_ = args;
   }
 }
 
 class FakePublisher {
-  calledWith_: IArguments;
-  constructor() {
-    this.calledWith_ = [].slice.call(arguments);
+  // tslint:disable-next-line no-any
+  calledWith_: any[];
+  // tslint:disable-next-line no-any
+  constructor(...args: any[]) {
+    this.calledWith_ = args;
   }
 }