diff --git a/.eslintrc b/.eslintrc
index 4fcecdaf..ca9865a0 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -30,6 +30,7 @@
         "no-else-return": 2,
         "no-empty": 2,
         "no-empty-class": 2,
+        "no-empty-character-class": 2,
         "no-empty-label": 2,
         "no-eq-null": 2,
         "no-eval": 2,
@@ -105,10 +106,12 @@
         "no-use-before-define": 2,
         "no-void": 2,
         "no-var": 0,
+        "prefer-const": 2,
         "no-warning-comments": [2, { "terms": ["todo", "fixme", "xxx"], "location": "anywhere" }],
         "no-with": 2,
         "no-wrap-func": 2,
 
+        "accessor-pairs": 2,
         "block-scoped-var": 2,
         "brace-style": [2, "1tbs"],
         "camelcase": 2,
@@ -116,6 +119,7 @@
         "comma-spacing": 2,
         "comma-style": 2,
         "complexity": [2, 11],
+        "computed-property-spacing": [2, "never"],
         "consistent-return": 2,
         "consistent-this": [2, "self"],
         "curly": [2, "all"],
@@ -133,6 +137,7 @@
         "handle-callback-err": 2,
         "indent": [2, 2],
         "key-spacing": [2, { "beforeColon": false, "afterColon": true }],
+        "lines-around-comment": 0,
         "max-depth": [2, 4],
         "max-len": [2, 80, 2],
         "max-nested-callbacks": [2, 3],
@@ -141,6 +146,7 @@
         "new-cap": 2,
         "new-parens": 2,
         "newline-after-var": 0,
+        "object-curly-spacing": [2, "always"],
         "object-shorthand": 0,
         "one-var": 0,
         "operator-assignment": [2, "always"],
@@ -162,6 +168,7 @@
         "space-infix-ops": 2,
         "space-return-throw-case": 2,
         "space-unary-ops": [2, { "words": true, "nonwords": false }],
+        "spaced-comment": 0,
         "spaced-line-comment": [2, "always"],
         "strict": 2,
         "use-isnan": 2,
diff --git a/package.json b/package.json
index cb355bc2..0311a368 100644
--- a/package.json
+++ b/package.json
@@ -20,12 +20,12 @@
     "example": "npm install through2 & cd example & node standalone.js & grunt markdownlint & gulp markdownlint"
   },
   "dependencies": {
-    "markdown-it": "^4.2.1"
+    "markdown-it": "^4.2.2"
   },
   "devDependencies": {
-    "browserify": "^10.1.3",
-    "eslint": "^0.21.0",
-    "istanbul": "^0.3.13",
+    "browserify": "^10.2.4",
+    "eslint": "^0.23.0",
+    "istanbul": "^0.3.15",
     "nodeunit": "^0.9.1",
     "q": "^1.4.0",
     "uglify-js": "^2.4.23"