diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 71346f9b..06b86e86 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,6 +1,6 @@
 ### Building and Contributing
 
-To build you must first install [node.js](http://nodejs.org/) and [grunt](http://gruntjs.com/), then run
+To build you must first install [node.js](http://nodejs.org/) and [gulp](http://gulpjs.com/), then run
 
 	npm install
 
@@ -10,6 +10,6 @@ This will install the required build dependencies, then run
 
 which is a task that builds the `matter-dev.js` file, spawns a `connect` and `watch` server, then opens `demo/dev.html` in your browser. Any changes you make to the source will automatically rebuild `matter-dev.js` and reload your browser for quick and easy testing.
 
-Contributions are welcome, please ensure they follow the same style and architecture as the rest of the code. You should run `grunt test` to ensure `jshint` gives no errors. Please do not include any changes to the files in the `build` directory.
+Contributions are welcome, please ensure they follow the same style and architecture as the rest of the code. You should run `gulp test` to ensure `eslint` gives no errors. Please do not include any changes to the files in the `build` directory. 
 
 If you'd like to contribute but not sure what to work on, feel free to message me. Thanks!
\ No newline at end of file
diff --git a/README.md b/README.md
index 339e8357..f33081d3 100644
--- a/README.md
+++ b/README.md
@@ -145,7 +145,7 @@ This will install the required build dependencies, then run
 
 which is a task that builds the `matter-dev.js` file, spawns a `connect` and `watch` server, then opens `demo/dev.html` in your browser. Any changes you make to the source will automatically rebuild `matter-dev.js` and reload your browser for quick and easy testing.
 
-Contributions are welcome, please ensure they follow the same style and architecture as the rest of the code. You should run `gulp test` to ensure `jshint` gives no errors. Please do not include any changes to the files in the `build` directory. 
+Contributions are welcome, please ensure they follow the same style and architecture as the rest of the code. You should run `gulp test` to ensure `eslint` gives no errors. Please do not include any changes to the files in the `build` directory. 
 
 If you'd like to contribute but not sure what to work on, feel free to message me. Thanks!