diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7e38be7c..a3ae8bb2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 6.0.4 (2020-01-06)
+[Compare `@uirouter/core` versions 6.0.3 and 6.0.4](https://github.com/ui-router/core/compare/6.0.3...6.0.4)
+
+### Bug Fixes
+
+* **safeConsole:** check if document is defined to avoid issues in node environments ([da29d88](https://github.com/ui-router/core/commit/da29d88))
+
+
+
+
 ## 6.0.3 (2019-12-30)
 [Compare `@uirouter/core` versions 6.0.2 and 6.0.3](https://github.com/ui-router/core/compare/6.0.2...6.0.3)
 
diff --git a/package.json b/package.json
index f1a2ce6c..a124abd8 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@uirouter/core",
   "description": "UI-Router Core: Framework agnostic, State-based routing for JavaScript Single Page Apps",
-  "version": "6.0.3",
+  "version": "6.0.4",
   "scripts": {
     "clean": "shx rm -rf lib lib-esm _bundles .cache _doc",
     "compile": "npm run clean && tsc && tsc -m es6 --outDir lib-esm && shx cp src/*.json lib",
diff --git a/src/common/safeConsole.ts b/src/common/safeConsole.ts
index 3b0b0dc1..7d46ec89 100644
--- a/src/common/safeConsole.ts
+++ b/src/common/safeConsole.ts
@@ -22,7 +22,7 @@ function fallbackConsole(console) {
 
 function getSafeConsole() {
   // @ts-ignore
-  const isIE9 = document && document.documentMode && document.documentMode === 9;
+  const isIE9 = typeof document !== 'undefined' && document.documentMode && document.documentMode === 9;
   if (isIE9) {
     return window && window.console ? ie9Console(window.console) : noopConsoleStub;
   } else if (!console.table || !console.error) {
diff --git a/src/hooks/lazyLoad.ts b/src/hooks/lazyLoad.ts
index ab5a88c7..ef48fb7e 100644
--- a/src/hooks/lazyLoad.ts
+++ b/src/hooks/lazyLoad.ts
@@ -24,7 +24,7 @@ import { StateRule } from '../url/interface';
  * ```
  * .state('abc', {
  *   component: 'fooComponent',
- *   lazyLoad: () => System.import('./fooComponent')
+ *   lazyLoad: () => import('./fooComponent')
  *   });
  * ```
  *
diff --git a/src/state/interface.ts b/src/state/interface.ts
index 0cc0bf38..ba86465c 100644
--- a/src/state/interface.ts
+++ b/src/state/interface.ts
@@ -563,7 +563,7 @@ export interface StateDeclaration {
    *
    * ```
    * .state('abc', {
-   *   lazyLoad: (transition, state) => System.import('./abcService')
+   *   lazyLoad: (transition, state) => import('./abcService')
    * }
    * ```
    *
@@ -621,7 +621,7 @@ export interface StateDeclaration {
    * {
    *   name: 'parent.**',
    *   url: '/parent',
-   *   lazyLoad: () => System.import('./lazy.states.js')
+   *   lazyLoad: () => import('./lazy.states.js')
    * }
    * ```
    *
diff --git a/yarn.lock b/yarn.lock
index 16c85a0a..caaaed3e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4033,9 +4033,9 @@ rollup-pluginutils@^2.0.1, rollup-pluginutils@^2.8.1:
     estree-walker "^0.6.1"
 
 rollup@^1.15.5:
-  version "1.27.14"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.27.14.tgz#940718d5eec1a6887e399aa0089944bae5c4f377"
-  integrity sha512-DuDjEyn8Y79ALYXMt+nH/EI58L5pEw5HU9K38xXdRnxQhvzUTI/nxAawhkAHUQeudANQ//8iyrhVRHJBuR6DSQ==
+  version "1.28.0"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.28.0.tgz#d576a6a0fd7490b2e1f531ef8b411795fb80da87"
+  integrity sha512-v2J/DmQi9+Nf6frGqzwZRvbiuTTrqH0yzoUF4Eybf8sONT4UpLZzJYnYzW96Zm9X1+4SJmijfnFBWCzHDAXYnQ==
   dependencies:
     "@types/estree" "*"
     "@types/node" "*"