diff --git a/core/themes/claro/claro.info.yml b/core/themes/claro/claro.info.yml
index 07be922f74..0b7cca2be9 100644
--- a/core/themes/claro/claro.info.yml
+++ b/core/themes/claro/claro.info.yml
@@ -72,6 +72,17 @@ libraries-override:
       theme:
         assets/vendor/jquery.ui/themes/base/theme.css: false
 
+  core/jquery.ui:
+    css:
+      theme:
+        assets/vendor/jquery.ui/themes/base/theme.css: false
+  core/jquery.ui.dialog:
+    css:
+      component:
+        assets/vendor/jquery.ui/themes/base/dialog.css: false
+      theme:
+        assets/vendor/jquery.ui/themes/base/theme.css: false
+
   user/drupal.user:
     css:
       component:
diff --git a/core/themes/seven/seven.info.yml b/core/themes/seven/seven.info.yml
index f02a6f0a86..2978d41c95 100644
--- a/core/themes/seven/seven.info.yml
+++ b/core/themes/seven/seven.info.yml
@@ -48,6 +48,16 @@ libraries-override:
         assets/vendor/jquery.ui/themes/base/dialog.css: false
       theme:
         assets/vendor/jquery.ui/themes/base/theme.css: false
+  core/jquery.ui:
+    css:
+      theme:
+        assets/vendor/jquery.ui/themes/base/theme.css: false
+  core/jquery.ui.dialog:
+    css:
+      component:
+        assets/vendor/jquery.ui/themes/base/dialog.css: false
+      theme:
+        assets/vendor/jquery.ui/themes/base/theme.css: false
 
 libraries-extend:
   core/ckeditor: