diff --git a/core/tests/Drupal/BuildTests/Composer/Template/ComposerProjectTemplatesTest.php b/core/tests/Drupal/BuildTests/Composer/Template/ComposerProjectTemplatesTest.php
index 94a0c8b1cb..451b80e85f 100644
--- a/core/tests/Drupal/BuildTests/Composer/Template/ComposerProjectTemplatesTest.php
+++ b/core/tests/Drupal/BuildTests/Composer/Template/ComposerProjectTemplatesTest.php
@@ -255,7 +255,12 @@ protected function makeVendorPackage($repository_path) {
     $packages = [];
     foreach ($installed['installed'] as $project) {
       $name = $project['name'];
-      $version = $project['version'];
+      // Handle version information which has a commit hash appended.
+      $version = explode(' ', $project['version'], 2)[0];
+      // Fix behat/mink version for 8.8.x.
+      if ($name === 'behat/mink' && $version === 'dev-master') {
+        $version = '1.7.x-dev';
+      }
       $path = "vendor/$name";
       $full_path = "$root/$path";
       // We are building a set of path repositories to projects in the vendor