diff --git a/core/UPDATE.txt b/core/UPDATE.txt
index ebc4e82..502f8ce 100644
--- a/core/UPDATE.txt
+++ b/core/UPDATE.txt
@@ -64,7 +64,24 @@ following the instructions in the INTRODUCTION section at the top of this file:
    Enable the "Put site into maintenance mode" checkbox and save the
    configuration.
 
-3. Remove the 'core' and 'vendor' directories. Also remove all of the files
+3. Determine if your project is managed by Composer. To determine this run the
+   following command:
+
+     composer info drupal/core
+
+   If this is successful, your project is managed by Composer. If you don't have
+   Composer installed and "drupal/core" is present "require" section of
+   composer.json you have project managed by Composer and will need to install
+   Composer in order to update it.
+
+   If the project is not managed by Composer, go to step 4.
+
+   If the project is managed by Composer, run the following command from the
+   command line in the root directory and skip to step 7.
+
+     composer update drupal/core --with-dependencies
+
+4. Remove the 'core' and 'vendor' directories. Also remove all of the files
    in the top-level directory, except any that you added manually.
 
    If you made modifications to files like .htaccess, composer.json, or
@@ -94,7 +111,7 @@ following the instructions in the INTRODUCTION section at the top of this file:
    this page you can scroll down or use the filter to find your version and its
    release notes.
 
-4. Download the latest Drupal 8.x.x release from https://www.drupal.org to a
+5. Download the latest Drupal 8.x.x release from https://www.drupal.org to a
    directory outside of your web root. Extract the archive and copy the files
    into your Drupal directory.
 
@@ -113,10 +130,15 @@ following the instructions in the INTRODUCTION section at the top of this file:
    from https://www.drupal.org using your web browser, extract it, and then use
    an FTP client to upload the files to your web root.
 
-5. Re-apply any modifications to files such as .htaccess, composer.json, or
-   robots.txt.
+6. Re-apply any modifications to files such as .htaccess or robots.txt.
+
+   If you have changes to composer.json it is recommended that you re-install
+   the dependencies instead of applying the changes by hand. For example, to
+   reinstall the Address module and its dependencies run:
+
+     composer require drupal/address
 
-6. Run update.php by visiting http://www.example.com/update.php (replace
+7. Run update.php by visiting http://www.example.com/update.php (replace
    www.example.com with your domain name). This will update the core database
    tables.
 
@@ -133,12 +155,12 @@ following the instructions in the INTRODUCTION section at the top of this file:
    - Once the update is done, $settings['update_free_access'] must be reverted
      to FALSE.
 
-7. Go to Administration > Reports > Status report. Verify that everything is
+8. Go to Administration > Reports > Status report. Verify that everything is
    working as expected.
 
-8. Ensure that $settings['update_free_access'] is FALSE in settings.php.
+9. Ensure that $settings['update_free_access'] is FALSE in settings.php.
 
-9. Go to Administration > Configuration > Development > Maintenance mode.
+10. Go to Administration > Configuration > Development > Maintenance mode.
    Disable the "Put site into maintenance mode" checkbox and save the
    configuration.