diff --git a/package.json b/package.json
index b2eb126..48b9484 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,6 @@
     "common-tags": "^1.8.0",
     "cross-fetch": "^3.0.4",
     "debug": "^4.1.1",
-    "defaults-deep": "^0.2.4",
     "qs": "6.9.1",
     "url-join": "^4.0.1",
     "url-parse": "^1.4.7"
diff --git a/src/index.js b/src/index.js
index 28db9ee..3d1e075 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,8 +1,6 @@
 const URL = require('url-parse');
-const boolean = require('boolean');
 const caseless = require('caseless');
 const debug = require('debug')('frisbee');
-const defaults = require('defaults-deep');
 const qs = require('qs');
 const urlJoin = require('url-join');
 const { boolean } = require('boolean');
@@ -96,30 +94,28 @@ function createFrisbeeResponse(origResp) {
 
 class Frisbee {
   constructor(opts = {}) {
-    this.opts = defaults(
-      {
-        preventBodyOnMethods: ['GET', 'HEAD', 'DELETE', 'CONNECT'],
-        interceptableMethods: METHODS,
-        mode: 'same-origin',
-        cache: 'default',
-        credentials: 'same-origin',
-        redirect: 'follow',
-        referrer: 'client',
-        body: null,
-        params: null,
-        logRequest: false,
-        logResponse: false,
-        parse: {
-          ignoreQueryPrefix: true
-        },
-        stringify: {
-          addQueryPrefix: true,
-          format: 'RFC1738',
-          arrayFormat: 'indices'
-        }
+    this.opts = {
+      preventBodyOnMethods: ['GET', 'HEAD', 'DELETE', 'CONNECT'],
+      interceptableMethods: METHODS,
+      mode: 'same-origin',
+      cache: 'default',
+      credentials: 'same-origin',
+      redirect: 'follow',
+      referrer: 'client',
+      body: null,
+      params: null,
+      logRequest: false,
+      logResponse: false,
+      parse: {
+        ignoreQueryPrefix: true
       },
-      opts
-    );
+      stringify: {
+        addQueryPrefix: true,
+        format: 'RFC1738',
+        arrayFormat: 'indices'
+      },
+      ...opts
+    };
 
     let localAbortController;
     Object.defineProperty(this, 'abortController', {
diff --git a/yarn.lock b/yarn.lock
index 5fc84e4..edac053 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2838,15 +2838,6 @@ default-require-extensions@^2.0.0:
   dependencies:
     strip-bom "^3.0.0"
 
-defaults-deep@^0.2.4:
-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/defaults-deep/-/defaults-deep-0.2.4.tgz#a479cfeafce025810fb93aa8d2dde0ee2d677cc6"
-  integrity sha512-V6BtqzcMvn0EPOy7f+SfMhfmTawq+7UQdt9yZH0EBK89+IHo5f+Hse/qzTorAXOBrQpxpwb6cB/8OgtaMrT+Fg==
-  dependencies:
-    for-own "^0.1.3"
-    is-extendable "^0.1.1"
-    lazy-cache "^0.2.3"
-
 defaults@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/defaults/-/defaults-1.0.3.tgz#c656051e9817d9ff08ed881477f3fe4019f3ef7d"
@@ -4068,18 +4059,11 @@ fn-name@^2.0.1:
   resolved "https://registry.yarnpkg.com/fn-name/-/fn-name-2.0.1.tgz#5214d7537a4d06a4a301c0cc262feb84188002e7"
   integrity sha1-UhTXU3pNBqSjAcDMJi/rhBiAAuc=
 
-for-in@^1.0.1, for-in@^1.0.2:
+for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
   integrity sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=
 
-for-own@^0.1.3:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.5.tgz#5265c681a4f294dabbf17c9509b6763aa84510ce"
-  integrity sha1-UmXGgaTylNq78XyVCbZ2OqhFEM4=
-  dependencies:
-    for-in "^1.0.1"
-
 foreach@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
@@ -5501,11 +5485,6 @@ latest-version@^5.0.0:
   dependencies:
     package-json "^6.3.0"
 
-lazy-cache@^0.2.3:
-  version "0.2.7"
-  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-0.2.7.tgz#7feddf2dcb6edb77d11ef1d117ab5ffdf0ab1b65"
-  integrity sha1-f+3fLctu23fRHvHRF6tf/fCrG2U=
-
 levenshtein-edit-distance@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/levenshtein-edit-distance/-/levenshtein-edit-distance-1.0.0.tgz#895baf478cce8b5c1a0d27e45d7c1d978a661e49"