diff --git a/composer.json b/composer.json
index 0a700e2..8e8e40a 100644
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,6 @@
                 "mediawiki/semantic-extra-special-properties": "dev-master",
                 "mediawiki/semantic-result-formats": "dev-master",
                 "mediawiki/semantic-scribunto": "dev-master",
-                "mediawiki/semantic-drilldown": "dev-master",
                 "starcitizenwiki/apiunto": "dev-develop",
                 "mediawiki/pageviewinfo": "1.39.0",
                 "starcitizentools/citizen-skin": "dev-main",
@@ -602,23 +601,6 @@
                                 }
                         }
                 },
-                {
-                        "type": "package",
-                        "package": {
-                                "name": "mediawiki/semantic-drilldown",
-                                "type": "mediawiki-extension",
-                                "version": "1.39.0",
-                                "dist": {
-                                        "url": "https://github.com/SemanticMediaWiki/SemanticDrilldown/archive/master.zip",
-                                        "type": "zip"
-                                },
-                                "source": {
-                                        "type": "git",
-                                        "url": "https://github.com/SemanticMediaWiki/SemanticDrilldown.git",
-                                        "reference": "master"
-                                }
-                        }
-                },
                 {
                         "type": "package",
                         "package": {
diff --git a/config/LocalSettings.php b/config/LocalSettings.php
index 91d85db..2782ccf 100644
--- a/config/LocalSettings.php
+++ b/config/LocalSettings.php
@@ -584,7 +584,6 @@
 	'RSS',
 	'SandboxLink',
 	'Scribunto',
-	'SemanticDrilldown',
 	'SemanticExtraSpecialProperties',
 	'SemanticMediaWiki',
 	'SemanticResultFormats',