diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15526d860..ade8d99cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+### [1.9.1] 2019-11-01
+
+  * Fixed various credential handling issues with gitlab and github
+  * Fixed credentials being present in git remotes in Composer cache and vendor directory when not using SSH keys
+  * Fixed `composer why` not listing replacers as a reason something is present
+  * Fixed various PHP 7.4 compatibility issues
+  * Fixed root warnings always present in Docker containers, setting COMPOSER_ALLOW_SUPERUSER is not necessary anymore
+  * Fixed GitHub access tokens leaking into debug-verbosity output
+  * Fixed several edge case issues detecting GitHub, Bitbucket and GitLab repository types
+  * Fixed Composer asking if you want to use a composer.json in a parent directory when ran in non-interactive mode
+  * Fixed classmap autoloading issue finding classes located within a few non-PHP context blocks (?>...<?php)
+
 ### [1.9.0] 2019-08-02
 
   * Breaking: artifact repositories with URLs containing port numbers and requiring authentication now require you to configure http-basic auth for the `host:port` pair explicitly
@@ -764,6 +776,7 @@
 
   * Initial release
 
+[1.9.1]: https://github.com/composer/composer/compare/1.9.0...1.9.1
 [1.9.0]: https://github.com/composer/composer/compare/1.8.6...1.9.0
 [1.8.6]: https://github.com/composer/composer/compare/1.8.5...1.8.6
 [1.8.5]: https://github.com/composer/composer/compare/1.8.4...1.8.5
diff --git a/src/Composer/Command/RequireCommand.php b/src/Composer/Command/RequireCommand.php
index f2bd78b4b..cbdfdaf9c 100644
--- a/src/Composer/Command/RequireCommand.php
+++ b/src/Composer/Command/RequireCommand.php
@@ -159,7 +159,15 @@ EOT
         }
 
         $phpVersion = $this->repos->findPackage('php', '*')->getPrettyVersion();
-        $requirements = $this->determineRequirements($input, $output, $input->getArgument('packages'), $phpVersion, $preferredStability, !$input->getOption('no-update'), $input->getOption('fixed'));
+        try {
+            $requirements = $this->determineRequirements($input, $output, $input->getArgument('packages'), $phpVersion, $preferredStability, !$input->getOption('no-update'), $input->getOption('fixed'));
+        } catch (\Exception $e) {
+            if ($this->newlyCreated) {
+                throw new \RuntimeException('No composer.json present in the current directory, this may be the cause of the following exception.', 0, $e);
+            }
+
+            throw $e;
+        }
 
         $requireKey = $input->getOption('dev') ? 'require-dev' : 'require';
         $removeKey = $input->getOption('dev') ? 'require' : 'require-dev';