diff --git a/README.md b/README.md
index 43ae278..155e732 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Evermark
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/akuma/evermark.svg)](https://greenkeeper.io/)
+
 [![NPM version][npm-image]][npm-url]
 [![Build Status][build-image]][build-url]
 [![Windows Build Status][build-image-win]][build-url-win]
diff --git a/package.json b/package.json
index c10b75e..970e24c 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "markdown-it-mathjax": "^2.0.0",
     "markdown-it-sub": "^1.0.0",
     "markdown-it-sup": "^1.0.0",
-    "mathjax-node": "^0.5.1",
+    "mathjax-node": "^1.1.0",
     "mermaid": "^7.0.0",
     "opn": "^5.0.0",
     "ora": "^1.0.0",
@@ -60,7 +60,7 @@
     "warehouse": "^2.2.0"
   },
   "devDependencies": {
-    "ava": "^0.18.0",
+    "ava": "^0.19.1",
     "babel-cli": "^6.16.0",
     "babel-eslint": "^7.0.0",
     "babel-preset-latest": "^6.16.0",