diff --git a/src/Composer/Repository/Vcs/GitHubDriver.php b/src/Composer/Repository/Vcs/GitHubDriver.php
index 09beb7680..97a334f94 100644
--- a/src/Composer/Repository/Vcs/GitHubDriver.php
+++ b/src/Composer/Repository/Vcs/GitHubDriver.php
@@ -235,7 +235,7 @@ class GitHubDriver extends VcsDriver
                     $key = $match[1];
                     continue;
                 }
-                if (Preg::isMatchStrictGroups('{^\[(.*)\](?:\s*#.*)?$}', $match[2], $match2)) {
+                if (Preg::isMatchStrictGroups('{^\[(.*?)\](?:\s*#.*)?$}', $match[2], $match2)) {
                     foreach (array_map('trim', Preg::split('{[\'"]?\s*,\s*[\'"]?}', $match2[1])) as $item) {
                         $result[] = ['type' => $match[1], 'url' => trim($item, '"\' ')];
                     }