diff --git a/History.md b/History.md
index 5665ad3..c734bda 100644
--- a/History.md
+++ b/History.md
@@ -1,3 +1,7 @@
+7.0.0 / 2019-10-08
+==================
+
+  * deps; [semver-major] bump @hapi/joi from 15.x -> 16.x
 
 6.0.0 / 2019-04-27
 ==================
diff --git a/output-validation-rule.js b/output-validation-rule.js
index 739a191..4e9a09f 100644
--- a/output-validation-rule.js
+++ b/output-validation-rule.js
@@ -1,7 +1,6 @@
 'use strict';
 
 const assert = require('assert');
-const Joi = require('@hapi/joi');
 const helpMsg = ' -> see: https://github.com/koajs/joi-router/#validating-output';
 
 module.exports = OutputValidationRule;
@@ -66,18 +65,20 @@ OutputValidationRule.prototype.matches = function matches(ctx) {
  * Validates this rule against the given `ctx`.
  */
 
-OutputValidationRule.prototype.validateOutput = function validateOutput(ctx) {
+OutputValidationRule.prototype.validateOutput = function validateOutput(ctx, validatorBuilder) {
   let result;
 
   if (this.spec.headers) {
-    result = Joi.validate(ctx.response.headers, this.spec.headers);
+    const validator = validatorBuilder(this.spec.headers)
+    result = validator(ctx.response.headers);
     if (result.error) return result.error;
     // use casted values
     ctx.set(result.value);
   }
 
   if (this.spec.body) {
-    result = Joi.validate(ctx.body, this.spec.body);
+    const validator = validatorBuilder(this.spec.body)
+    result = validator(ctx.body);
     if (result.error) return result.error;
     // use casted values
     ctx.body = result.value;
diff --git a/output-validator.js b/output-validator.js
index 6e65620..a118bc3 100644
--- a/output-validator.js
+++ b/output-validator.js
@@ -39,13 +39,13 @@ function assertNoOverlappingStatusRules(rules) {
   }
 };
 
-OutputValidator.prototype.validate = function(ctx) {
+OutputValidator.prototype.validate = function(ctx, validatorBuilder) {
   assert(ctx, 'missing request context!');
 
   for (let i = 0; i < this.rules.length; ++i) {
     const rule = this.rules[i];
     if (rule.matches(ctx)) {
-      return rule.validateOutput(ctx);
+      return rule.validateOutput(ctx, validatorBuilder);
     }
   }
 };
diff --git a/package.json b/package.json
index 5025210..f5d35a2 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
-  "name": "koa-joi-router",
-  "version": "6.0.0",
+  "name": "koa-not-so-joi-router",
+  "version": "7.1.0",
   "description": "Configurable, input validated routing for koa.",
-  "main": "joi-router.js",
+  "main": "router.js",
   "keywords": [
     "joi",
     "koa",
@@ -26,14 +26,13 @@
   "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "https://github.com/koajs/joi-router.git"
+    "url": "https://github.com/janzal/not-so-joi-router.git"
   },
   "bugs": {
-    "url": "https://github.com/koajs/joi-router/issues"
+    "url": "https://github.com/janzal/not-so-joi-router/issues"
   },
-  "homepage": "https://github.com/koajs/joi-router",
+  "homepage": "https://github.com/janzal/not-so-joi-router",
   "dependencies": {
-    "@hapi/joi": "15.0.0",
     "await-busboy": "1.0.3",
     "clone": "2.1.2",
     "co-body": "6.0.0",
@@ -46,6 +45,7 @@
     "sliced": "1.0.1"
   },
   "devDependencies": {
+    "@hapi/joi": "^16.1.7",
     "eslint": "^5",
     "koa": "^2.1",
     "mocha": "^6.0.2",
diff --git a/joi-router.js b/router.js
similarity index 95%
rename from joi-router.js
rename to router.js
index 0fc1bee..b4e65fa 100644
--- a/joi-router.js
+++ b/router.js
@@ -8,7 +8,6 @@ const methods = require('methods');
 const KoaRouter = require('koa-router');
 const busboy = require('await-busboy');
 const parse = require('co-body');
-const Joi = require('@hapi/joi');
 const slice = require('sliced');
 const delegate = require('delegates');
 const clone = require('clone');
@@ -16,16 +15,22 @@ const OutputValidator = require('./output-validator');
 
 module.exports = Router;
 
-// expose Joi for use in applications
-Router.Joi = Joi;
+function identity(obj) {
+  return obj;
+}
 
-function Router() {
+function Router({
+  validatorBuilder
+} = { validatorBuilder: identity }) {
   if (!(this instanceof Router)) {
-    return new Router();
+    return new Router({
+      validatorBuilder
+    });
   }
 
   this.routes = [];
   this.router = new KoaRouter();
+  this.validatorBuilder = validatorBuilder
 }
 
 /**
@@ -116,7 +121,7 @@ Router.prototype._addRoute = function addRoute(spec) {
 
   const bodyParser = makeBodyParser(spec);
   const specExposer = makeSpecExposer(spec);
-  const validator = makeValidator(spec);
+  const validator = makeValidator(spec, this.validatorBuilder);
   const preHandlers = spec.pre ? flatten(spec.pre) : [];
   const handlers = flatten(spec.handler);
 
@@ -400,7 +405,7 @@ function captureError(ctx, type, err) {
  * @api private
  */
 
-function makeValidator(spec) {
+function makeValidator(spec, validatorBuilder) {
   const props = 'header query params body'.split(' ');
 
   return async function validator(ctx, next) {
@@ -412,7 +417,7 @@ function makeValidator(spec) {
       const prop = props[i];
 
       if (spec.validate[prop]) {
-        err = validateInput(prop, ctx, spec.validate);
+        err = validateInput(prop, ctx, spec.validate, validatorBuilder);
 
         if (err) {
           captureError(ctx, prop, err);
@@ -426,7 +431,7 @@ function makeValidator(spec) {
     if (spec.validate._outputValidator) {
       debug('validating output');
 
-      err = spec.validate._outputValidator.validate(ctx);
+      err = spec.validate._outputValidator.validate(ctx, validatorBuilder);
       if (err) {
         err.status = 500;
         return ctx.throw(err);
@@ -470,11 +475,12 @@ async function prepareRequest(ctx, next) {
  * @api private
  */
 
-function validateInput(prop, ctx, validate) {
+function validateInput(prop, ctx, validate, validatorBuilder) {
   debug('validating %s', prop);
 
   const request = ctx.request;
-  const res = Joi.validate(request[prop], validate[prop]);
+  const validator = validatorBuilder(validate[prop]);
+  const res = validator(request[prop]);
 
   if (res.error) {
     res.error.status = validate.failure;
diff --git a/test/index.js b/test/index.js
index a4d3247..311bcaa 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const router = require('../');
+const routerFactory = require('../');
 const Koa = require('koa');
 const assert = require('assert');
 const request = require('supertest');
@@ -10,6 +10,19 @@ const methods = require('methods');
 const slice = require('sliced');
 const MiddlewareGenerator = require('./test-utils').MiddlewareGenerator;
 
+function joiValidatorBuilder(schema) {
+  const validator = Joi.compile(schema);
+  return (obj) => {
+    return validator.validate(obj)
+  }
+}
+
+const router = () => {
+  return routerFactory({
+    validatorBuilder: joiValidatorBuilder
+  })
+}
+
 function makeRouterApp(router) {
   const app = new Koa();
   app.use(router.middleware());
@@ -20,7 +33,7 @@ function test(app) {
   return request(http.createServer(app.callback()));
 }
 
-describe('koa-joi-router', () => {
+describe('koa-not-so-joi-router', () => {
   it('exposes a function', (done) => {
     assert.equal('function', typeof router);
     done();
@@ -28,12 +41,7 @@ describe('koa-joi-router', () => {
 
   it('is a constructor', (done) => {
     const r = router();
-    assert(r instanceof router);
-    done();
-  });
-
-  it('exposes the Joi module', (done) => {
-    assert.equal(router.Joi, Joi);
+    assert(r instanceof routerFactory);
     done();
   });
 
@@ -182,7 +190,6 @@ describe('koa-joi-router', () => {
               return next();
             },
             handler: (ctx) => {
-              console.log('ctx.request.body', ctx.request.body);
               ctx.body = ctx.request.body;
             }
           });