diff --git a/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php b/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php
index d56126a..f51894c 100644
--- a/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php
+++ b/core/lib/Drupal/Core/Asset/LibraryDiscoveryParser.php
@@ -317,12 +317,12 @@ protected function parseLibraryInfo($extension, $path) {
    * Apply libraries overrides specified for the current active theme.
    *
    * @param array $libraries
-   *   The library definition.
+   *   The libraries definitions.
    * @param string $extension
-   *   The extension in which this library was defined.
+   *   The extension in which these libraries are defined.
    *
    * @return array
-   *   The modified library definition.
+   *   The modified libraries definitions.
    */
   protected function applyLibrariesOverrides($libraries, $extension) {
     $active_theme = $this->themeManager->getActiveTheme();
@@ -356,11 +356,12 @@ protected function applyLibrariesOverrides($libraries, $extension) {
             $parents = [$component, $value];
             $new_parents = [$component, '/' . $theme_path . '/' . $override];
           }
-          // Remove previous component to be overridden.
+          // Remove previous component to be overridden, but keep the attributes.
+          $attributes = NestedArray::getValue($libraries[$name], $parents);
           NestedArray::unsetValue($libraries[$name], $parents);
           if ($override) {
             // Replace with an override if specified.
-            NestedArray::setValue($libraries[$name], $new_parents, []);
+            NestedArray::setValue($libraries[$name], $new_parents, $attributes);
           }
         }
       }
diff --git a/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php b/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php
index 989f56e..5148824 100644
--- a/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php
+++ b/core/modules/system/src/Tests/Asset/LibraryDiscoveryIntegrationTest.php
@@ -73,6 +73,14 @@ public function testLibrariesOverride() {
     $library = $library_discovery->getLibraryByName('core', 'drupal.dialog');
     $this->assertNoAssetInLibraryComponent($library['css'], 'drupal.dialog', 'core/misc/dialog.theme.css');
 
+    // Assert that overridden library component still retains attributes.
+    $library = $library_discovery->getLibraryByName('core', 'jquery');
+    foreach ($library['js'] as $definition) {
+      if ($definition['data'] == 'core/modules/system/tests/themes/test_theme/js/collapse.js') {
+        $this->assertEqual($definition['minified'] && $definition['weight'] == -20, 'Previous attributes retained');
+        break;
+      }
+    }
   }
 
   protected function assertAssetInLibraryComponent($component, $library_name, $asset, $message = NULL) {
diff --git a/core/modules/system/tests/themes/test_theme/test_theme.info.yml b/core/modules/system/tests/themes/test_theme/test_theme.info.yml
index 9e63615..abfdc65 100644
--- a/core/modules/system/tests/themes/test_theme/test_theme.info.yml
+++ b/core/modules/system/tests/themes/test_theme/test_theme.info.yml
@@ -24,6 +24,8 @@ libraries-override:
   classy/base/css/theme/css/layout.css: css/test_theme_layout.css
   # Remove one particular asset.
   core/drupal.dialog/css/theme/misc/dialog.theme.css: false
+  # It works for js as well.
+  core/jquery/js/assets/vendor/jquery/jquery.min.js: js/collapse.js
 regions:
   content: Content
   left: Left