diff --git a/README.md b/README.md
index e9a9a3d2a..c1f2973e3 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ For a more detailed summary over the differences between various builds, check o
 lodash backbone
 ```
 
- * Legacy builds, tailored for older environments without [ES5 support](http://es5.github.com/), may be created using the `legacy` modifier argument.
+ * Legacy builds, tailored for older environments without [ES5 support](http://es5.github.io/), may be created using the `legacy` modifier argument.
 ```bash
 lodash legacy
 ```
@@ -104,7 +104,7 @@ lodash modern
 lodash mobile
 ```
 
- * Strict builds, with `_.bindAll`, `_.defaults`, and `_.extend` in [strict mode](http://es5.github.com/#C), may be created using the `strict` modifier argument.
+ * Strict builds, with `_.bindAll`, `_.defaults`, and `_.extend` in [strict mode](http://es5.github.io/#C), may be created using the `strict` modifier argument.
 ```bash
 lodash strict
 ```
diff --git a/lodash.js b/lodash.js
index e163787e5..6488d56e9 100644
--- a/lodash.js
+++ b/lodash.js
@@ -443,7 +443,7 @@
     // Avoid issues with some ES3 environments that attempt to use values, named
     // after built-in constructors like `Object`, for the creation of literals.
     // ES5 clears this up by stating that literals must use built-in constructors.
-    // See http://es5.github.com/#x11.1.5.
+    // See http://es5.github.io/#x11.1.5.
     context = context ? _.defaults(window.Object(), context, _.pick(window, contextProps)) : window;
 
     /** Native constructor references */
@@ -1077,7 +1077,7 @@
 
       function bound() {
         // `Function#bind` spec
-        // http://es5.github.com/#x15.3.4.5
+        // http://es5.github.io/#x15.3.4.5
         var args = arguments,
             thisBinding = isPartial ? this : thisArg;
 
@@ -1094,7 +1094,7 @@
           thisBinding = createObject(func.prototype);
 
           // mimic the constructor's `return` behavior
-          // http://es5.github.com/#x13.2.2
+          // http://es5.github.io/#x13.2.2
           var result = func.apply(thisBinding, args);
           return isObject(result) ? result : thisBinding;
         }
@@ -1938,7 +1938,7 @@
         return false;
       }
       // exit early for `null` and `undefined`, avoiding ES3's Function#call behavior
-      // http://es5.github.com/#x15.3.4.4
+      // http://es5.github.io/#x15.3.4.4
       if (a == null || b == null) {
         return a === b;
       }
@@ -1971,7 +1971,7 @@
 
         case regexpClass:
         case stringClass:
-          // coerce regexes to strings (http://es5.github.com/#x15.10.6.4)
+          // coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
           // treat string primitives and their corresponding object instances as equal
           return a == String(b);
       }
@@ -1999,7 +1999,7 @@
       }
       // assume cyclic structures are equal
       // the algorithm for detecting cyclic structures is adapted from ES 5.1
-      // section 15.12.3, abstract operation `JO` (http://es5.github.com/#x15.12.3)
+      // section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
       var initedStack = !stackA;
       stackA || (stackA = getArray());
       stackB || (stackB = getArray());
@@ -2075,7 +2075,7 @@
      * Checks if `value` is, or can be coerced to, a finite number.
      *
      * Note: This is not the same as native `isFinite`, which will return true for
-     * booleans and empty strings. See http://es5.github.com/#x15.1.2.5.
+     * booleans and empty strings. See http://es5.github.io/#x15.1.2.5.
      *
      * @static
      * @memberOf _
@@ -2148,7 +2148,7 @@
      */
     function isObject(value) {
       // check if the value is the ECMAScript language type of Object
-      // http://es5.github.com/#x8
+      // http://es5.github.io/#x8
       // and avoid a V8 bug
       // http://code.google.com/p/v8/issues/detail?id=2291
       return !!(value && objectTypes[typeof value]);
@@ -2158,7 +2158,7 @@
      * Checks if `value` is `NaN`.
      *
      * Note: This is not the same as native `isNaN`, which will return `true` for
-     * `undefined` and other values. See http://es5.github.com/#x15.1.2.4.
+     * `undefined` and other values. See http://es5.github.io/#x15.1.2.4.
      *
      * @static
      * @memberOf _
@@ -5262,7 +5262,7 @@
      * `value` is a hexadecimal, in which case a `radix` of `16` is used.
      *
      * Note: This method avoids differences in native ES3 and ES5 `parseInt`
-     * implementations. See http://es5.github.com/#E.
+     * implementations. See http://es5.github.io/#E.
      *
      * @static
      * @memberOf _