diff --git a/.travis.yml b/.travis.yml
index 67643e74c..13e4afec8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,9 +8,17 @@ os:
   - linux
   - osx
 
+env:
+  - ESLINT_VERSION=2
+  - ESLINT_VERSION=3
+  - ESLINT_VERSION=4
+
 install:
-  - npm -g install npm@3
+  - if [ ${TRAVIS_NODE_VERSION} == "4" ]; then
+      npm install -g npm@3;
+    fi
   - npm install
+  - npm install eslint@$ESLINT_VERSION --ignore-scripts || true
   # install all resolver deps
   - "for resolver in ./resolvers/*; do cd $resolver && npm install && cd ../..; done"
 
diff --git a/appveyor.yml b/appveyor.yml
index 0e86dc9e7..406099f66 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -14,11 +14,11 @@ install:
   # Get the latest stable version of Node.js or io.js
   - ps: Install-Product node $env:nodejs_version
 
-  # update npm (only needed for Node 0.10)
-  - npm -g install npm@3
-  # - set PATH=%APPDATA%\npm;%PATH%
-
   # install modules
+  - ps: >-
+      if ($env:nodejs_version -eq "4") {
+        npm install -g npm@3;
+      }
   - npm install
 
   # todo: learn how to do this for all .\resolvers\* on Windows
diff --git a/package.json b/package.json
index f39f56258..24f87d602 100644
--- a/package.json
+++ b/package.json
@@ -74,7 +74,7 @@
     "typescript-eslint-parser": "^2.1.0"
   },
   "peerDependencies": {
-    "eslint": "2.x - 3.x"
+    "eslint": "2.x - 4.x"
   },
   "dependencies": {
     "builtin-modules": "^1.1.1",
diff --git a/src/rules/no-named-default.js b/src/rules/no-named-default.js
index 3185157f3..0625c1f1e 100644
--- a/src/rules/no-named-default.js
+++ b/src/rules/no-named-default.js
@@ -10,7 +10,7 @@ module.exports = {
           if (im.type === 'ImportSpecifier' && im.imported.name === 'default') {
             context.report({
               node: im.local,
-              message: `Use default import syntax to import \'${im.local.name}\'.` })
+              message: `Use default import syntax to import '${im.local.name}'.` })
           }
         })
       },
diff --git a/tests/src/rules/default.js b/tests/src/rules/default.js
index 5186e56ca..027c5a93d 100644
--- a/tests/src/rules/default.js
+++ b/tests/src/rules/default.js
@@ -58,8 +58,12 @@ ruleTester.run('default', rule, {
 
     // #94: redux export of execution result,
     test({ code: 'import connectedApp from "./redux"' }),
-    test({ code: 'import App from "./jsx/App"'
-         , ecmaFeatures: { jsx: true, modules: true } }),
+    test({
+      code: 'import App from "./jsx/App"',
+      parserOptions: {
+        ecmaFeatures: { jsx: true, modules: true },
+      },
+    }),
 
     // from no-errors
     test({
diff --git a/tests/src/rules/named.js b/tests/src/rules/named.js
index f1c40b474..f027a5b3d 100644
--- a/tests/src/rules/named.js
+++ b/tests/src/rules/named.js
@@ -135,7 +135,7 @@ ruleTester.run('named', rule, {
 
     test({
       code: 'import { a } from "./re-export-names"',
-      args: [2, 'es6-only'],
+      options: [2, 'es6-only'],
       errors: [error('a', './re-export-names')],
     }),
 
diff --git a/tests/src/utils.js b/tests/src/utils.js
index 7a13ed432..144969f5b 100644
--- a/tests/src/utils.js
+++ b/tests/src/utils.js
@@ -12,11 +12,12 @@ export const FILENAME = testFilePath('foo.js')
 export function test(t) {
   return Object.assign({
     filename: FILENAME,
-    parserOptions: {
+  }, t, {
+    parserOptions: Object.assign({
       sourceType: 'module',
       ecmaVersion: 6,
-    },
-  }, t)
+    }, t.parserOptions),
+  })
 }
 
 export function testContext(settings) {