diff --git a/core/lib/Drupal/Core/Extension/InfoParserDynamic.php b/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
index 64db0a8ed9..541b6a086c 100644
--- a/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
+++ b/core/lib/Drupal/Core/Extension/InfoParserDynamic.php
@@ -121,15 +121,12 @@ public function parse($filename) {
         $parsed_info['dependencies'] = [];
       }
       // Module dependencies declared by themes should be in machine name
-      // format. The ability to specify version constraints or parse project
-      // prefixes will be available when it becomes possible for composer.json
-      // to support dependency metadata.
-      //
-      // @see https://www.drupal.org/project/drupal/issues/3005229
+      // format. Module dependencies declared by a theme do not support version
+      // constraints or project prefixes.
       if ($parsed_info['type'] === 'theme' && isset($parsed_info['dependencies'])) {
         $non_machine_name_dependencies = preg_grep('/[^a-z0-9_]+/', $parsed_info['dependencies']);
         if (!empty($non_machine_name_dependencies)) {
-          throw new InfoParserException("Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by {$parsed_info['name']} is not in machine name format: " . implode(',', $non_machine_name_dependencies));
+          throw new InfoParserException("Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by $filename is not in machine name format: " . implode(',', $non_machine_name_dependencies));
         }
       }
     }
diff --git a/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php b/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php
index c0ada9e028..8196735c4f 100644
--- a/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Extension/InfoParserUnitTest.php
@@ -548,12 +548,12 @@ public function testUnparsableThemeModuleDependency($theme_yml, $exception_messa
     vfsStream::setup('modules');
     vfsStream::create([
       'fixtures' => [
-        'unparsable_module_dependency.info.txt' => $theme_yml,
+        'unparsable_module_dependency.info.yml' => $theme_yml,
       ],
     ]);
     $this->expectException(InfoParserException::class);
     $this->expectExceptionMessage($exception_message);
-    $this->infoParser->parse(vfsStream::url('modules/fixtures/unparsable_module_dependency.info.txt'));
+    $this->infoParser->parse(vfsStream::url('modules/fixtures/unparsable_module_dependency.info.yml'));
   }
 
   /**
@@ -572,7 +572,6 @@ public function providerTestUnparsableThemeModuleDependency() {
 UNPARSABLE;
 
     $has_project_prefix = <<<UNPARSABLE
-# info.yml for testing invalid core_version_requirement value.
 name: Test Theme Depending on Modules
 type: theme
 core: 8.x
@@ -583,7 +582,6 @@ public function providerTestUnparsableThemeModuleDependency() {
 UNPARSABLE;
 
     $has_a_space = <<<UNPARSABLE
-# info.yml for testing invalid core_version_requirement value.
 name: Test Theme Depending on Modules
 type: theme
 core: 8.x
@@ -594,7 +592,6 @@ public function providerTestUnparsableThemeModuleDependency() {
 UNPARSABLE;
 
     $has_capital = <<<UNPARSABLE
-# info.yml for testing invalid core_version_requirement value.
 name: Test Theme Depending on Modules
 type: theme
 core: 8.x
@@ -607,19 +604,19 @@ public function providerTestUnparsableThemeModuleDependency() {
     return [
       'has_version_constraints' => [
         $has_version_constraints,
-        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by Test Theme Depending on Modules is not in machine name format: module_with_some_version_metadata (>4.1)',
+        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by vfs://modules/fixtures/unparsable_module_dependency.info.yml is not in machine name format: module_with_some_version_metadata (>4.1)',
       ],
       'has_project_prefix' => [
         $has_project_prefix,
-        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by Test Theme Depending on Modules is not in machine name format: drupal::module_with_a_project_prefix',
+        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by vfs://modules/fixtures/unparsable_module_dependency.info.yml is not in machine name format: drupal::module_with_a_project_prefix',
       ],
       'has_a_space' => [
         $has_a_space,
-        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by Test Theme Depending on Modules is not in machine name format: apparently_i_have_a space',
+        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by vfs://modules/fixtures/unparsable_module_dependency.info.yml is not in machine name format: apparently_i_have_a space',
       ],
       'has_capital' => [
         $has_capital,
-        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by Test Theme Depending on Modules is not in machine name format: capitalLetters',
+        'Theme module dependencies must be machine names (only underscores, digits, and lowercase letters). At least one dependency declared by vfs://modules/fixtures/unparsable_module_dependency.info.yml is not in machine name format: capitalLetters',
       ],
     ];
   }