diff --git a/configurable_theme_libraries.info.yml b/configurable_theme_libraries.info.yml
index 790cd31..489fa38 100644
--- a/configurable_theme_libraries.info.yml
+++ b/configurable_theme_libraries.info.yml
@@ -4,3 +4,4 @@ description: Provides the ability to define configurable libraries in your theme
 core: 8.x
 php: '7.1'
 package: Theming
+core_version_requirement: ^8 || ^9
diff --git a/src/Theme/ThemeInitialization.php b/src/Theme/ThemeInitialization.php
index ff5c634..9e8f8de 100644
--- a/src/Theme/ThemeInitialization.php
+++ b/src/Theme/ThemeInitialization.php
@@ -35,7 +35,7 @@ class ThemeInitialization extends CoreThemeInitialization {
       'engine' => $active_theme->getEngine(),
       'owner' => $active_theme->getOwner(),
       'logo' => $active_theme->getLogo(),
-      'stylesheets_remove' => $active_theme->getStyleSheetsRemove(),
+      'stylesheets_remove' => $this->prepareStylesheetsRemove($theme, $base_themes),
       'libraries' => $active_theme->getLibraries(),
       'extension' => $active_theme->getExtension(),
       'base_theme_extensions' => $active_theme->getBaseThemeExtensions(),