diff --git a/.editorconfig b/.editorconfig
index 73c487668543c2..1937215c9faf9a 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,4 +1,4 @@
-# EditorConfig is awesome: http://EditorConfig.org
+# EditorConfig is awesome: https://editorconfig.org/
 
 # top-most EditorConfig file
 root = true
diff --git a/.github/support.yml b/.github/support.yml
index 753c400a7de0b3..ae4b369ef56d07 100644
--- a/.github/support.yml
+++ b/.github/support.yml
@@ -9,7 +9,7 @@ supportComment: |
   👋 Thanks for using Material-UI!
   
   We use the issue tracker exclusively for bug reports and feature requests, however,
-  this issue appears to be a support request or question. Please ask on [StackOverflow](http://stackoverflow.com/questions/tagged/material-ui) where the
+  this issue appears to be a support request or question. Please ask on [StackOverflow](https://stackoverflow.com/questions/tagged/material-ui) where the
   community will do their best to help. There is a "material-ui" tag that you can use to tag your
   question.
   
diff --git a/SUPPORT.md b/SUPPORT.md
index 14b433caf626c2..41a351de8f43e2 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -2,7 +2,7 @@
 
 ## Asking Questions
 
-For how-to questions and other non-issues, please use [StackOverflow](http://stackoverflow.com/questions/tagged/material-ui) or [Spectrum](https://spectrum.chat/material-ui) chat instead of Github issues. There is a StackOverflow tag called "material-ui" that you can use to tag your questions.
+For how-to questions and other non-issues, please use [StackOverflow](https://stackoverflow.com/questions/tagged/material-ui) or [Spectrum](https://spectrum.chat/material-ui) chat instead of Github issues. There is a StackOverflow tag called "material-ui" that you can use to tag your questions.
 
 ## Opening an Issue
 
diff --git a/docs/src/pages/components/icons/icons.md b/docs/src/pages/components/icons/icons.md
index a406da62a029d6..f8450c28f775b8 100644
--- a/docs/src/pages/components/icons/icons.md
+++ b/docs/src/pages/components/icons/icons.md
@@ -86,7 +86,7 @@ but [https://materialdesignicons.com](https://materialdesignicons.com/) provides
 
 The `Icon` component will display an icon from any icon font that supports ligatures.
 As a prerequisite, you must include one, such as the
-[Material icon font](http://google.github.io/material-design-icons/#icon-font-for-the-web) in your project, for instance, via Google Web Fonts:
+[Material icon font](https://google.github.io/material-design-icons/#icon-font-for-the-web) in your project, for instance, via Google Web Fonts:
 
 ```html
 <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" />
diff --git a/docs/src/pages/guides/server-rendering/server-rendering.md b/docs/src/pages/guides/server-rendering/server-rendering.md
index 2fef00db4d7831..63d8cfd2964978 100644
--- a/docs/src/pages/guides/server-rendering/server-rendering.md
+++ b/docs/src/pages/guides/server-rendering/server-rendering.md
@@ -56,7 +56,7 @@ export default theme;
 ### The server-side
 
 The following is the outline for what our server-side is going to look like.
-We are going to set up an [Express middleware](http://expressjs.com/en/guide/using-middleware.html) using [app.use](http://expressjs.com/en/api.html) to handle all requests that come in to our server.
+We are going to set up an [Express middleware](https://expressjs.com/en/guide/using-middleware.html) using [app.use](https://expressjs.com/en/api.html) to handle all requests that come in to our server.
 If you're unfamiliar with Express or middleware, just know that our handleRender function will be called every time the server receives a request.
 
 `server.js`
diff --git a/packages/material-ui-icons/builder.md b/packages/material-ui-icons/builder.md
index 1ac512b45ab48b..d731bfc50ef39f 100644
--- a/packages/material-ui-icons/builder.md
+++ b/packages/material-ui-icons/builder.md
@@ -22,7 +22,7 @@ generates the appropriate `.js` files in the `build` folder, and creates a `pack
 
 `node build.js --help` can be used to display the options available for building.
 
-You can build your own SVG icons as well as collections like [game-icons](http://game-icons.net/)
+You can build your own SVG icons as well as collections like [game-icons](https://game-icons.net/)
 through command line options.
 
 * `--output-dir` - Directory to output generated components.
diff --git a/packages/material-ui/src/ButtonBase/ButtonBase.test.js b/packages/material-ui/src/ButtonBase/ButtonBase.test.js
index 50b9f425d6dd32..fd7cf9067851a1 100644
--- a/packages/material-ui/src/ButtonBase/ButtonBase.test.js
+++ b/packages/material-ui/src/ButtonBase/ButtonBase.test.js
@@ -76,10 +76,10 @@ describe('<ButtonBase />', () => {
     });
 
     it('should automatically change the button to an a element when href is provided', () => {
-      const wrapper = mount(<ButtonBase href="http://google.com">Hello</ButtonBase>);
+      const wrapper = mount(<ButtonBase href="https://google.com">Hello</ButtonBase>);
       const button = wrapper.find('[role="button"]');
       assert.strictEqual(button.type(), 'a');
-      assert.strictEqual(button.props().href, 'http://google.com');
+      assert.strictEqual(button.props().href, 'https://google.com');
     });
 
     it('should change the button type to a and set role="button"', () => {
@@ -92,13 +92,13 @@ describe('<ButtonBase />', () => {
 
     it('should not change the button to an a element', () => {
       const wrapper = mount(
-        <ButtonBase component="span" href="http://google.com">
+        <ButtonBase component="span" href="https://google.com">
           Hello
         </ButtonBase>,
       );
       const button = wrapper.find('[role="button"]');
       assert.strictEqual(button.name(), 'span');
-      assert.strictEqual(button.props().href, 'http://google.com');
+      assert.strictEqual(button.props().href, 'https://google.com');
     });
   });