diff --git a/.mocharc.yml b/.mocharc.yml
new file mode 100644
index 0000000..2770979
--- /dev/null
+++ b/.mocharc.yml
@@ -0,0 +1,7 @@
+exit: true # could be expressed as "no-exit: true"
+recursive: true
+reporter: spec
+require:
+  - 'test/global.js'
+slow: 5000
+timeout: 5000 # same as "no-timeout: true" or "timeout: 0"
diff --git a/.travis.yml b/.travis.yml
index e9285fa..231e3da 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,10 +7,9 @@ node_js:
   - "10"
   - "11"
   - "12"
+  - "13"
+  - "14"
 sudo: false
-cache:
-  directories:
-  - node_modules
 before_script:
   - npm install && npm install coveralls mocha-lcov-reporter --save-dev
 script:
diff --git a/README.md b/README.md
index 19dffba..86a0894 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ app.get('/', (req, res) => {
  * Result (req.query):  
  * {  
  *    fields: { name: 1, age: 1 },  
- *    sort: { created_at: 'asc' }  
+ *    sort: { created_at: 1 }  
  *    filters: {},  
  *    pagination: {  
  *        skip: 10,  
@@ -61,7 +61,7 @@ app.use(qs({
   },  
   default: {  
       fields: {name: 1 , age: 1, number: 1, _id: 0},  
-      sort: { created_at: 'desc' },  
+      sort: { created_at: -1 },  
       filters: {},  
       pagination: {  
           page: 1,  
@@ -75,7 +75,7 @@ app.use(qs({
  * Result (req.query):  
  * {  
  *    fields: { name: 1, age: 1},  
- *    sort: { created_at: 'desc' }  
+ *    sort: { created_at: -1 }  
  *    filters: {age: 30},  
  *    pagination: {  
  *        limit: 100,  
@@ -127,7 +127,7 @@ console.log(qs.parseFields(query, {}, { use_page: true }))
 * Result: 
 * {
 *   fields: { name: 1, age: 1 },
-*   sort: { created_at: 'asc' },
+*   sort: { created_at: 1 },
 *   filters: {},
 *   pagination: { limit: 10, page: 1 },
 *   original:  '?fields=name,age&page=1&limit=10&sort=created_at'
@@ -166,9 +166,9 @@ console.log(qs.parseSort(query))
 /**
 * Result: 
 * { 
-*     name: 'asc',
-*     age: 'desc',
-*     created_at: 'asc'
+*     name: 1,
+*     age: -1,
+*     created_at: 1
 * }
 */
 ```
diff --git a/lib/mapper/ordination.js b/lib/mapper/ordination.js
index 5062db3..68dbd15 100644
--- a/lib/mapper/ordination.js
+++ b/lib/mapper/ordination.js
@@ -19,8 +19,8 @@ function processQuery(query) {
     query = query.replace(/([^\w\s,-])|(\s{1,})/gi, '')
     query.split(',').forEach(function (elem) {
         elem = elem.trim()
-        if (elem[0] === '-') result[elem.substr(1)] = 'desc'
-        else result[elem] = 'asc'
+        if (elem[0] === '-') result[elem.substr(1)] = -1
+        else result[elem] = 1
     })
     return result
 }
diff --git a/package.json b/package.json
index 4ec8a63..585c782 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,14 @@
 {
   "name": "query-strings-parser",
-  "version": "2.1.4",
+  "version": "2.1.5",
   "description": "Middleware to transform query strings in a format that is recognized by the MongoDB, MySQL and other databases...",
   "license": "MIT",
   "main": "index.js",
   "scripts": {
-    "test": "nyc --clean --all --reporter=text-summary mocha --opts test/mocha.opts test/**/*.spec.js",
-    "test:unit": "nyc --clean --all --reporter=text-summary mocha --opts test/mocha.opts test/unit/*.spec.js",
-    "test:integration": "nyc --clean --all --reporter=text-summary mocha --opts test/mocha.opts test/integration/*.spec.js",
-    "test:cov": "nyc --clean --all --reporter=html --reporter=text mocha --opts test/mocha.opts test/**/*.spec.js"
+    "test": "nyc --clean --all --reporter=text-summary mocha test/**/*.spec.js",
+    "test:unit": "nyc --clean --all --reporter=text-summary mocha test/unit/*.spec.js",
+    "test:integration": "nyc --clean --all --reporter=text-summary mocha test/integration/*.spec.js",
+    "test:cov": "nyc --clean --all --reporter=html --reporter=text mocha test/**/*.spec.js"
   },
   "directories": {
     "lib": "lib",
@@ -44,8 +44,8 @@
   "devDependencies": {
     "chai": "^4.2.0",
     "express": "^4.17.1",
-    "mocha": "^6.2.1",
-    "nyc": "^14.1.1",
+    "mocha": "^7.2.0",
+    "nyc": "^15.1.0",
     "supertest": "^4.0.2"
   }
 }
diff --git a/test/integration/index.default.config.spec.js b/test/integration/index.default.config.spec.js
index 9c03a75..e5bfdaa 100644
--- a/test/integration/index.default.config.spec.js
+++ b/test/integration/index.default.config.spec.js
@@ -78,7 +78,7 @@ describe('queryFilter()', function () {
 
         context('when query contains ordination param', function () {
             it('should return req.query with set ordination params', function () {
-                const expect_sort = {name: 'asc', age: 'desc'}
+                const expect_sort = {name: 1, age: -1}
 
                 const options = JSON.parse(JSON.stringify(default_options))
                 options.default.sort = expect_sort
@@ -88,6 +88,7 @@ describe('queryFilter()', function () {
                 return request(app)
                     .get(query)
                     .then(res => {
+                        console.table(res.body)
                         validate(res.body, options)
                     })
             })
diff --git a/test/mocha.opts b/test/mocha.opts
deleted file mode 100644
index bd159c8..0000000
--- a/test/mocha.opts
+++ /dev/null
@@ -1,6 +0,0 @@
---reporter spec
---require test/global.js
---recursive
---slow 5000
---timeout 5000
---exit
\ No newline at end of file
diff --git a/test/unit/index.spec.js b/test/unit/index.spec.js
index 50db78e..8e39e5d 100644
--- a/test/unit/index.spec.js
+++ b/test/unit/index.spec.js
@@ -172,9 +172,8 @@ describe('QueryString: Parsers', function () {
 
             it('should return parsing query classification merged with custom classification', function () {
                 const query = '?sort=name,-age,created_at'
-                const result = index.parser(query, {sort: {_id: 'desc'}})
-                verifySort(result.sort)
-                expect(result.sort).to.have.property('_id', 'desc')
+                const result = index.parser(query, {sort: {_id: -1}})
+                expect(result.sort).to.have.property('_id', -1)
             })
 
             it('should return parse query pagination', function () {
@@ -218,9 +217,9 @@ function verifySort(result) {
     expect(result).to.have.property('name')
     expect(result).to.have.property('age')
     expect(result).to.have.property('created_at')
-    expect(result.name).to.eql('asc')
-    expect(result.age).to.eql('desc')
-    expect(result.created_at).to.eql('asc')
+    expect(result.name).to.eql(1)
+    expect(result.age).to.eql(-1)
+    expect(result.created_at).to.eql(1)
 }
 
 function verifyPage(result) {
diff --git a/test/unit/ordination.spec.js b/test/unit/ordination.spec.js
index e2f51df..2092932 100644
--- a/test/unit/ordination.spec.js
+++ b/test/unit/ordination.spec.js
@@ -50,29 +50,24 @@ describe('QueryString: Ordination', function () {
 
     context('when use custom params', function () {
         it('should return a JSON with custom params', function () {
-            const custom_options = {default: {sort: {created_at: 'asc'}}}
+            const custom_options = {default: {sort: {created_at: 1}}}
             const result = ordination.sort({}, custom_options)
-            expect(result).is.not.null
-            expect(result).to.have.property('created_at')
-            expect(result.created_at).to.eql('asc')
+            expect(result.created_at).to.eql(1)
         })
 
         it('should return a JSON with custom parameters and those of the query', function () {
-            const custom_options = {default: {sort: {created_at: 'asc'}}}
+            const custom_options = {default: {sort: {created_at: 1}}}
             const result = ordination.sort({sort: '-created_at,-age,name'}, custom_options)
-            expect(result.created_at).to.eql('desc')
-            expect(result.age).to.eql('desc')
-            expect(result.name).to.eql('asc')
+            expect(result.created_at).to.eql(-1)
+            expect(result.age).to.eql(-1)
+            expect(result.name).to.eql(1)
         })
     })
 })
 
 function verify(result) {
-    expect(result).to.have.property('name')
-    expect(result).to.have.property('age')
-    expect(result).to.have.property('created_at')
-    expect(result.name).to.eql('desc')
-    expect(result.age).to.eql('asc')
-    expect(result.created_at).to.eql('asc')
+    expect(result.name).to.eql(-1)
+    expect(result.age).to.eql(1)
+    expect(result.created_at).to.eql(1)
 
 }