diff --git a/lib/client/auth-code.js b/lib/client/auth-code.js
index 6accbce8..4fc7d206 100644
--- a/lib/client/auth-code.js
+++ b/lib/client/auth-code.js
@@ -42,7 +42,7 @@ module.exports = (config) => {
    *                                     that represents the application privileges
    * @return {Promise}
    */
-  async function getToken(params) {
+  async function getToken(params = {}) {
     const baseParams = {
       grant_type: 'authorization_code',
     };
diff --git a/lib/client/client.js b/lib/client/client.js
index 700378d2..e29a8f4a 100644
--- a/lib/client/client.js
+++ b/lib/client/client.js
@@ -16,7 +16,7 @@ module.exports = (config) => {
    *                                     that represents the application privileges
    * @return {Promise}
    */
-  async function getToken(params) {
+  async function getToken(params = {}) {
     const baseParams = {
       grant_type: 'client_credentials',
     };
diff --git a/lib/client/password.js b/lib/client/password.js
index 00756817..4f802bac 100644
--- a/lib/client/password.js
+++ b/lib/client/password.js
@@ -18,7 +18,7 @@ module.exports = (config) => {
    *                                     that represents the application privileges
    * @return {Promise}
    */
-  async function getToken(params) {
+  async function getToken(params = {}) {
     const baseParams = {
       grant_type: 'password',
     };
diff --git a/package-lock.json b/package-lock.json
index 075b9c40..50d25b37 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -487,9 +487,10 @@
       "integrity": "sha512-O4QDrx+JoGKZc6aN64L04vqa7e41tIiLU+OvKdcYaEMP97UttL0f9GIi9/0A4WAMx0uBd6SidDIhktZhgOcN8Q=="
     },
     "@hapi/boom": {
-      "version": "7.4.11",
-      "resolved": "https://registry.npmjs.org/@hapi/boom/-/boom-7.4.11.tgz",
-      "integrity": "sha512-VSU/Cnj1DXouukYxxkes4nNJonCnlogHvIff1v1RVoN4xzkKhMXX+GRmb3NyH1iar10I9WFPDv2JPwfH3GaV0A==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/@hapi/boom/-/boom-8.0.1.tgz",
+      "integrity": "sha512-SnBM2GzEYEA6AGFKXBqNLWXR3uNBui0bkmklYXX1gYtevVhDTy2uakwkSauxvIWMtlANGRhzChYg95If3FWCwA==",
+      "dev": true,
       "requires": {
         "@hapi/hoek": "8.x.x"
       }
@@ -510,9 +511,9 @@
       "integrity": "sha512-JPiBy+oSmsq3St7XlipfN5pNA6bDJ1kpa73PrK/zR29CVClDVqy04AanM/M/qx5bSF+I61DdCfAvRrujau+zRg=="
     },
     "@hapi/joi": {
-      "version": "16.1.5",
-      "resolved": "https://registry.npmjs.org/@hapi/joi/-/joi-16.1.5.tgz",
-      "integrity": "sha512-FnVe0t1YQbF0H4fhFM6qBL7lIP4wdVHdFFBkloxgCkpKKdaCB6Z2UaNI0UalaDRHbRM9BvfTfyUKJg7tGtBSXg==",
+      "version": "16.1.7",
+      "resolved": "https://registry.npmjs.org/@hapi/joi/-/joi-16.1.7.tgz",
+      "integrity": "sha512-anaIgnZhNooG3LJLrTFzgGALTiO97zRA1UkvQHm9KxxoSiIzCozB3RCNCpDnfhTJD72QlrHA8nwGmNgpFFCIeg==",
       "requires": {
         "@hapi/address": "^2.1.2",
         "@hapi/formula": "^1.2.0",
@@ -522,9 +523,9 @@
       },
       "dependencies": {
         "@hapi/hoek": {
-          "version": "8.2.5",
-          "resolved": "https://registry.npmjs.org/@hapi/hoek/-/hoek-8.2.5.tgz",
-          "integrity": "sha512-rmGFzok1zR3xZKd5m3ihWdqafXFxvPHoQ/78+AG5URKbEbJiwBBfRgzbu+07W5f3+07JRshw6QqGbVmCp8ntig=="
+          "version": "8.3.0",
+          "resolved": "https://registry.npmjs.org/@hapi/hoek/-/hoek-8.3.0.tgz",
+          "integrity": "sha512-C0QL9bmgUXTSuf8nDeGrpMjtJG7tPUr8wG6/wxPbP62tGwCwQtdMSJYfESowmY4P3Hn593f+8OzNY5bckcu/LQ=="
         }
       }
     },
@@ -534,9 +535,9 @@
       "integrity": "sha512-dtXC/WkZBfC5vxscazuiJ6iq4j9oNx1SHknmIr8hofarpKUZKmlUVYVIhNVzIEgK5Wrc4GMHL5lZtt1uS2flmQ=="
     },
     "@hapi/topo": {
-      "version": "3.1.4",
-      "resolved": "https://registry.npmjs.org/@hapi/topo/-/topo-3.1.4.tgz",
-      "integrity": "sha512-aVWQTOI9wBD6zawmOr6f+tdEIxQC8JXfQVLTjgGe8YEStAWGn/GNNVTobKJhbWKveQj2RyYF3oYbO9SC8/eOCA==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/@hapi/topo/-/topo-3.1.5.tgz",
+      "integrity": "sha512-bi9m1jrui9LlvtVdLaHv0DqeOoe+I8dep+nEcTgW6XxJHL3xArQcilYz3tIp0cRC4gWlsVtABK7vNKg4jzEmAA==",
       "requires": {
         "@hapi/hoek": "8.x.x"
       }
@@ -549,6 +550,16 @@
         "@hapi/boom": "7.x.x",
         "@hapi/bourne": "1.x.x",
         "@hapi/hoek": "8.x.x"
+      },
+      "dependencies": {
+        "@hapi/boom": {
+          "version": "7.4.11",
+          "resolved": "https://registry.npmjs.org/@hapi/boom/-/boom-7.4.11.tgz",
+          "integrity": "sha512-VSU/Cnj1DXouukYxxkes4nNJonCnlogHvIff1v1RVoN4xzkKhMXX+GRmb3NyH1iar10I9WFPDv2JPwfH3GaV0A==",
+          "requires": {
+            "@hapi/hoek": "8.x.x"
+          }
+        }
       }
     },
     "@nodelib/fs.scandir": {
@@ -4117,9 +4128,9 @@
       "dev": true
     },
     "nock": {
-      "version": "11.3.5",
-      "resolved": "https://registry.npmjs.org/nock/-/nock-11.3.5.tgz",
-      "integrity": "sha512-6WGeZcWc3RExkBcMSYSrUm/5YukDo52m/jhwniQyrnuiCnKRljBwwje9vTwJyEi4J6m2bq0Aj6C1vzuM6iuaeg==",
+      "version": "11.3.6",
+      "resolved": "https://registry.npmjs.org/nock/-/nock-11.3.6.tgz",
+      "integrity": "sha512-54MSX4qeRnhwQQ2PSHlHc6pM6zNf7Dq9ni0BTFTurnDbUUssXl2Jy3E95ffaE8rZ/W/FWa9VSfzWDDnbdAsoTg==",
       "dev": true,
       "requires": {
         "chai": "^4.1.2",
diff --git a/package.json b/package.json
index 649028d7..1c3d05ab 100644
--- a/package.json
+++ b/package.json
@@ -44,13 +44,13 @@
     "credentials"
   ],
   "dependencies": {
-    "@hapi/joi": "^16.1.5",
+    "@hapi/joi": "^16.1.7",
     "@hapi/wreck": "^15.1.0",
     "date-fns": "^2.4.1",
     "debug": "^4.1.1"
   },
   "devDependencies": {
-    "@hapi/boom": "^7.4.11",
+    "@hapi/boom": "^8.0.1",
     "ava": "^2.4.0",
     "chance": "^1.1.0",
     "chance-access-token": "^1.0.1",
@@ -59,7 +59,7 @@
     "eslint-config-airbnb-base": "^14.0.0",
     "eslint-plugin-import": "^2.9.0",
     "lodash": "^4.17.15",
-    "nock": "^11.3.5",
+    "nock": "^11.3.6",
     "nyc": "^14.1.1"
   },
   "license": "Apache-2.0"
diff --git a/test/auth-code.js b/test/auth-code.js
index 3ac2b737..df929090 100644
--- a/test/auth-code.js
+++ b/test/auth-code.js
@@ -396,6 +396,24 @@ test.serial('@getToken => resolves to an access token with a custom grant type',
   t.deepEqual(token, getAccessToken());
 });
 
+test.serial('@getToken => resolves to an access token with no params', async (t) => {
+  const expectedRequestParams = {
+    grant_type: 'authorization_code',
+  };
+
+  const scopeOptions = getHeaderCredentialsScopeOptions();
+  const server = createAuthorizationServer('https://authorization-server.org:443');
+  const scope = server.tokenSuccess(scopeOptions, expectedRequestParams);
+
+  const config = createModuleConfig();
+  const oauth2 = oauth2Module.create(config);
+
+  const token = await oauth2.authorizationCode.getToken();
+
+  scope.done();
+  t.deepEqual(token, getAccessToken());
+});
+
 test.serial('@getToken => rejects the operation when a non json response is received', async (t) => {
   const expectedRequestParams = {
     grant_type: 'authorization_code',
diff --git a/test/client.js b/test/client.js
index 672d4e18..2714cc1b 100644
--- a/test/client.js
+++ b/test/client.js
@@ -235,6 +235,24 @@ test.serial('@getToken => resolves to an access token with a custom grant type',
   t.deepEqual(token, getAccessToken());
 });
 
+test.serial('@getToken => resolves to an access token with no params', async (t) => {
+  const expectedRequestParams = {
+    grant_type: 'client_credentials',
+  };
+
+  const scopeOptions = getHeaderCredentialsScopeOptions();
+  const server = createAuthorizationServer('https://authorization-server.org:443');
+  const scope = server.tokenSuccess(scopeOptions, expectedRequestParams);
+
+  const config = createModuleConfig();
+  const oauth2 = oauth2Module.create(config);
+
+  const token = await oauth2.clientCredentials.getToken();
+
+  scope.done();
+  t.deepEqual(token, getAccessToken());
+});
+
 test.serial('@getToken => rejects the operation when a non json response is received', async (t) => {
   const expectedRequestParams = {
     grant_type: 'client_credentials',
diff --git a/test/password.js b/test/password.js
index e583f843..47f8cc09 100644
--- a/test/password.js
+++ b/test/password.js
@@ -254,6 +254,24 @@ test.serial('@getToken => resolves to an access token with a custom grant type',
   t.deepEqual(token, getAccessToken());
 });
 
+test.serial('@getToken => resolves to an access token with no params', async (t) => {
+  const tokenRequestParams = {
+    grant_type: 'password',
+  };
+
+  const scopeOptions = getHeaderCredentialsScopeOptions();
+  const server = createAuthorizationServer('https://authorization-server.org:443');
+  const scope = server.tokenSuccess(scopeOptions, tokenRequestParams);
+
+  const config = createModuleConfig();
+  const oauth2 = oauth2Module.create(config);
+
+  const token = await oauth2.ownerPassword.getToken();
+
+  scope.done();
+  t.deepEqual(token, getAccessToken());
+});
+
 test.serial('@getToken => rejects the operation when a non json response is received', async (t) => {
   const tokenRequestParams = {
     grant_type: 'password',