diff --git a/README.md b/README.md
index 501723d..b8e1b44 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,15 @@ Automatically compiles a CSS Module to a low-level interchange format called ICS
 
 One of the ways you can compile [CSS Modules](https://github.com/css-modules/css-modules) to the ICSS format is through the require hook. The require hook will bind itself to node's require and automatically compile files on the fly. This is similar to Babel's [babel/register](https://babeljs.io/docs/usage/require/).
 
+## Requirements
+
+To use this tool we require postcss and few plugins to be installed on your project. See the list below:
+
+- `"postcss": "4.x"`
+- `"postcss-modules-extract-imports": "0.x"`
+- `"postcss-modules-local-by-default": "0.x"`
+- `"postcss-modules-scope": "0.x"`
+
 ## Install
 
 ```bash
diff --git a/package.json b/package.json
index 42bc94d..24a21ee 100644
--- a/package.json
+++ b/package.json
@@ -3,12 +3,6 @@
   "version": "1.0.1",
   "description": "A require hook to compile CSS Modules on the fly",
   "main": "index.js",
-  "dependencies": {
-    "postcss": "^4.1.16",
-    "postcss-modules-extract-imports": "0.0.5",
-    "postcss-modules-local-by-default": "0.0.9",
-    "postcss-modules-scope": "0.0.8"
-  },
   "devDependencies": {
     "babel": "^5.8.20",
     "babel-eslint": "^4.0.5",
@@ -20,8 +14,18 @@
     "in-publish": "^2.0.0",
     "isparta": "^3.0.3",
     "mocha": "^2.2.5",
+    "postcss": "4.x",
+    "postcss-modules-extract-imports": "0.x",
+    "postcss-modules-local-by-default": "0.x",
+    "postcss-modules-scope": "0.x",
     "precommit-hook": "^3.0.0"
   },
+  "peerDependencies": {
+    "postcss": "4.x",
+    "postcss-modules-extract-imports": "0.x",
+    "postcss-modules-local-by-default": "0.x",
+    "postcss-modules-scope": "0.x"
+  },
   "scripts": {
     "start": "esw -w .",
     "lint": "eslint .",