diff --git a/README.md b/README.md
index 105116b1d..231f120d3 100644
--- a/README.md
+++ b/README.md
@@ -145,7 +145,7 @@ GridStack no longer requires external dependencies as of v1.0.0 (lodash was remo
 
 ## API Documentation
 
-Documentation can be found [here](https://github.com/gridstack/gridstack.js/tree/develop/doc).
+Documentation can be found [here](https://github.com/gridstack/gridstack.js/tree/master/doc).
 
 
 ## Extend Library
@@ -232,7 +232,7 @@ Better yet, here is a SASS code snippet which can make life much easier (Thanks
 }
 ```
 
-you can also use the SASS [src/gridstack-extra.scss](https://github.com/gridstack/gridstack.js/blob/develop/src/gridstack-extra.scss) included in NPM package and modify to add more columns
+you can also use the SASS [src/gridstack-extra.scss](https://github.com/gridstack/gridstack.js/tree/master/src/gridstack-extra.scss) included in NPM package and modify to add more columns
 and also have the `.grid-stack-N` prefix to support letting the user change columns dynamically.
 
 Sample gulp command for 30 columns:
@@ -286,13 +286,13 @@ search for ['gridstack' under NPM](https://www.npmjs.com/search?q=gridstack&rank
 - **Ember**: [ember-gridstack](https://github.com/yahoo/ember-gridstack)
 - **knockout**: see [demo](https://gridstackjs.com/demo/knockout.html) using component, but check [custom bindings ticket](https://github.com/gridstack/gridstack.js/issues/465) which is likely better approach.
 - **Rails**: [gridstack-js-rails](https://github.com/randoum/gridstack-js-rails)
-- **React**: see [demo](https://gridstackjs.com/demo/react.html) with [src](https://github.com/gridstack/gridstack.js/blob/develop/demo/react.html), or  [react-gridstack-example](https://github.com/Inder2108/react-gridstack-example/blob/master/src/App.js), or read on what [hooks to use](https://github.com/gridstack/gridstack.js/issues/735#issuecomment-329888796)
-- **Vue**: see [demo](https://gridstackjs.com/demo/vue3js.html) with [v3 src](https://github.com/gridstack/gridstack.js/blob/develop/demo/vue3js.html) or [v2 src](https://github.com/gridstack/gridstack.js/blob/develop/demo/vue2js.html)
+- **React**: see [demo](https://gridstackjs.com/demo/react.html) with [src](https://github.com/gridstack/gridstack.js/tree/master/demo/react.html), or  [react-gridstack-example](https://github.com/Inder2108/react-gridstack-example/tree/master/src/App.js), or read on what [hooks to use](https://github.com/gridstack/gridstack.js/issues/735#issuecomment-329888796)
+- **Vue**: see [demo](https://gridstackjs.com/demo/vue3js.html) with [v3 src](https://github.com/gridstack/gridstack.js/tree/master/demo/vue3js.html) or [v2 src](https://github.com/gridstack/gridstack.js/tree/master/demo/vue2js.html)
 
 # Migrating
 ## Migrating to v0.6
 
-starting in 0.6.x `change` event are no longer sent (for pretty much most nodes!) when an item is just added/deleted unless it also changes other nodes (was incorrect and causing inefficiencies). You may need to track `added|removed` [events](https://github.com/gridstack/gridstack.js/tree/develop/doc#events) if you didn't and relied on the old broken behavior.
+starting in 0.6.x `change` event are no longer sent (for pretty much most nodes!) when an item is just added/deleted unless it also changes other nodes (was incorrect and causing inefficiencies). You may need to track `added|removed` [events](https://github.com/gridstack/gridstack.js/tree/master/doc#events) if you didn't and relied on the old broken behavior.
 
 ## Migrating to v1
 
@@ -425,7 +425,7 @@ As for events, you can still use `$(".grid-stack").on(...)` for the version that
 
 # Changes
 
-View our change log [here](https://github.com/gridstack/gridstack.js/tree/develop/doc/CHANGES.md).
+View our change log [here](https://github.com/gridstack/gridstack.js/tree/master/doc/CHANGES.md).
 
 
 # The Team
diff --git a/demo/react-hooks.html b/demo/react-hooks.html
index e3c8e6fd9..dbfb0a1cb 100644
--- a/demo/react-hooks.html
+++ b/demo/react-hooks.html
@@ -25,7 +25,7 @@ <h1>Using GridStack.js with React hooks</h1>
     <ol>
       <li>Render items, each with a reference</li>
       <li>Convert each rendered item to a widget using the reference and the <a
-          href="https://github.com/gridstack/gridstack.js/tree/develop/doc#makewidgetel">
+          href="https://github.com/gridstack/gridstack.js/tree/master/doc#makewidgetel">
           makeWidget</a> function</li>
     </ol>
   </div>
diff --git a/demo/react.html b/demo/react.html
index c03ad5b9a..2b7e3238d 100644
--- a/demo/react.html
+++ b/demo/react.html
@@ -84,7 +84,7 @@ <h1>How to integrate GridStack.js with React.js</h1>
             <p>
               If your app requires more complex render logic than the inline
               template in `addWidget`, consider&nbsp;
-              <a href="https://github.com/gridstack/gridstack.js/tree/develop/doc#makewidgetel">
+              <a href="https://github.com/gridstack/gridstack.js/tree/master/doc#makewidgetel">
                 makeWidget
               </a>
               &nbsp;to let React deal with DOM rendering.
diff --git a/demo/vue2js.html b/demo/vue2js.html
index c692aba1f..41b2899d6 100644
--- a/demo/vue2js.html
+++ b/demo/vue2js.html
@@ -20,7 +20,7 @@ <h1>How to integrate GridStack.js with Vue.js</h1>
         If your app requires more complex render logic than the inline template
         in `addWidget`, consider
         <a
-          href="https://github.com/gridstack/gridstack.js/tree/develop/doc#makewidgetel"
+          href="https://github.com/gridstack/gridstack.js/tree/master/doc#makewidgetel"
           >makeWidget</a
         >
         to let Vue deal with DOM rendering.
diff --git a/demo/vue3js.html b/demo/vue3js.html
index c213e7ab1..7ac5cd12a 100644
--- a/demo/vue3js.html
+++ b/demo/vue3js.html
@@ -20,7 +20,7 @@ <h1>How to integrate GridStack.js with Vue.js</h1>
         If your app requires more complex render logic than the inline template
         in `addWidget`, consider
         <a
-          href="https://github.com/gridstack/gridstack.js/tree/develop/doc#makewidgetel"
+          href="https://github.com/gridstack/gridstack.js/tree/master/doc#makewidgetel"
           >makeWidget</a
         >
         to let Vue deal with DOM rendering.
diff --git a/doc/CHANGES.md b/doc/CHANGES.md
index faf5d32d1..49c864e2a 100644
--- a/doc/CHANGES.md
+++ b/doc/CHANGES.md
@@ -125,7 +125,7 @@ HTML5 version will require re-write to plain `mousemove` & mobile `touchmove` in
 ## 3.1.0 (2020-12-4)
 
 - add new `addGrid(parent, opts)` to create a grid and load children instead of `init() + load()`, which is used by `load()` to supports nested grids creation.
-see [nested.html](https://github.com/gridstack/gridstack.js/blob/develop/demo/nested.html) demo.
+see [nested.html](https://github.com/gridstack/gridstack.js/tree/master/demo/nested.html) demo.
 - `save()` will now work on nested grids, recursively saving info. added flag to also allow saving the current grid options + children
 (needed for nested grids) so you can now call new `adddGrid()` to re-create everything from JSON.
 - fix [1505](https://github.com/gridstack/gridstack.js/issues/1505) don't call `movable()`/`resizable()` on locked items error. thanks [@infime](https://github.com/infime)
@@ -227,7 +227,7 @@ You can now have perfect square cells (default) [723](https://github.com/gridsta
 ## v1.0.0 (2020-02-23)
 
 - **breaking**: [(1084)](https://github.com/gridstack/gridstack.js/issues/1084) jquery was removed from the API and dependencies (initialize differently, and methods take/return `GridStack` or `HTMLElement` instead of `JQuery`), so your code will need to change. 
-See [Migrating to v1.0.0](https://github.com/gridstack/gridstack.js/blob/develop/README.md#migrating-to-v100)
+See [Migrating to v1.0.0](https://github.com/gridstack/gridstack.js/tree/master/README.md#migrating-to-v100)
 - `setColumn(N)` is now `column(N)` (matches other set/get methods) and `getColumn()` to get current column number
 - add `grid.on(eventName, callback)` / `grid.off(eventName)` to hide native JQ events mix
 - add `grid.getRow()` to get the current grid row number
diff --git a/doc/README.md b/doc/README.md
index 159d2af87..b2273aa1f 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -309,7 +309,7 @@ grids.forEach(...)
 * call to create a grid with the given options, including loading any children from JSON structure. This will call `GridStack.init()`, then `grid.load()` on any passed children (recursively). Great alternative to calling `init()` if you want entire grid to come from JSON serialized data, including options.
 * @param parent HTML element parent to the grid
 * @param opt grids options used to initialize the grid, and list of children
-* see [nested.html](https://github.com/gridstack/gridstack.js/blob/develop/demo/nested.html) demo
+* see [nested.html](https://github.com/gridstack/gridstack.js/tree/master/demo/nested.html) demo
 
 ### `setupDragIn(dragIn?: string, dragInOptions?: DDDragInOpt)`
 
diff --git a/src/gridstack.ts b/src/gridstack.ts
index 3786bc50c..5f509c864 100644
--- a/src/gridstack.ts
+++ b/src/gridstack.ts
@@ -3,7 +3,7 @@
  * https://gridstackjs.com/
  *
  * Copyright (c) 2021 Alain Dumesny
- * see root license https://github.com/gridstack/gridstack.js/blob/develop/LICENSE
+ * see root license https://github.com/gridstack/gridstack.js/tree/master/LICENSE
  */
 
 import { GridStackEngine } from './gridstack-engine';