diff --git a/core/modules/system/system.libraries.yml b/core/modules/system/system.libraries.yml
index 9493f52..19462ee 100644
--- a/core/modules/system/system.libraries.yml
+++ b/core/modules/system/system.libraries.yml
@@ -39,9 +39,6 @@ base:
       css/components/more-link.theme.css: { weight: -10 }
       css/components/pager.theme.css: { weight: -10 }
       css/components/progress.theme.css: { weight: -10 }
-      css/components/tableselect.theme.css: { weight: -10 }
-      css/components/tabledrag.theme.css: { weight: -10 }
-      css/components/tablesort.theme.css: { weight: -10 }
       css/components/tabs.theme.css: { weight: -10 }
       css/components/textarea.theme.css: { weight: -10 }
       css/components/tree-child.module.css: { weight: -10 }
diff --git a/core/themes/classy/classy.libraries.yml b/core/themes/classy/classy.libraries.yml
index af0f891..2961ba2 100644
--- a/core/themes/classy/classy.libraries.yml
+++ b/core/themes/classy/classy.libraries.yml
@@ -2,6 +2,9 @@ base:
   version: VERSION
   css:
     theme:
+      css/components/tableselect.css: { weight: -10 }
+      css/components/tabledrag.css: { weight: -10 }
+      css/components/tablesort.css: { weight: -10 }
       css/layout.css: {}
 
 book-navigation:
diff --git a/core/modules/system/css/components/tabledrag.theme.css b/core/themes/classy/css/components/tabledrag.css
similarity index 100%
rename from core/modules/system/css/components/tabledrag.theme.css
rename to core/themes/classy/css/components/tabledrag.css
diff --git a/core/modules/system/css/components/tableselect.theme.css b/core/themes/classy/css/components/tableselect.css
similarity index 100%
rename from core/modules/system/css/components/tableselect.theme.css
rename to core/themes/classy/css/components/tableselect.css
diff --git a/core/modules/system/css/components/tablesort.theme.css b/core/themes/classy/css/components/tablesort.css
similarity index 100%
rename from core/modules/system/css/components/tablesort.theme.css
rename to core/themes/classy/css/components/tablesort.css