diff --git a/extension.json b/extension.json
index 9e69d038..36ae03ce 100644
--- a/extension.json
+++ b/extension.json
@@ -33,7 +33,7 @@
 	"Hooks": {
 		"ParserTestGlobals": "ParserFunctionsHookHandler",
 		"ParserFirstCallInit": "ParserFunctionsHookHandler",
-		"ScribuntoExternalLibraries": "MediaWiki\\Extension\\ParserFunctions\\Hooks::onScribuntoExternalLibraries"
+		"ScribuntoExternalLibraries": "ParserFunctionsScribuntoHookHandler"
 	},
 	"HookHandlers": {
 		"ParserFunctionsHookHandler": {
@@ -41,6 +41,9 @@
 			"services": [
 				"MainConfig"
 			]
+		},
+		"ParserFunctionsScribuntoHookHandler": {
+			"class": "MediaWiki\\Extension\\ParserFunctions\\ScribuntoHooks"
 		}
 	},
 	"AutoloadNamespaces": {
diff --git a/includes/Hooks.php b/includes/Hooks.php
index 29bc7376..e216ca11 100644
--- a/includes/Hooks.php
+++ b/includes/Hooks.php
@@ -67,18 +67,4 @@ class Hooks implements
 			$parser->setFunctionHook( 'urldecode', [ ParserFunctions::class, 'runUrlDecode' ] );
 		}
 	}
-
-	/**
-	 * Registers ParserFunctions' lua function with Scribunto
-	 *
-	 * @see https://www.mediawiki.org/wiki/Extension:Scribunto/ScribuntoExternalLibraries
-	 *
-	 * @param string $engine
-	 * @param string[] &$extraLibraries
-	 */
-	public static function onScribuntoExternalLibraries( $engine, array &$extraLibraries ) {
-		if ( $engine === 'lua' ) {
-			$extraLibraries['mw.ext.ParserFunctions'] = LuaLibrary::class;
-		}
-	}
 }
diff --git a/includes/ScribuntoHooks.php b/includes/ScribuntoHooks.php
new file mode 100644
index 00000000..bcfa6ef6
--- /dev/null
+++ b/includes/ScribuntoHooks.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace MediaWiki\Extension\ParserFunctions;
+
+/**
+ * Hooks from Scribunto extension,
+ * which is optional to use with this extension.
+ * TODO: Implement interface MediaWiki\Extension\Scribunto\Hooks\ScribuntoExternalLibrariesHook
+ *  when extension requirement is MediaWiki 1.41+
+ */
+class ScribuntoHooks {
+
+	/**
+	 * Registers ParserFunctions' lua function with Scribunto
+	 *
+	 * @see https://www.mediawiki.org/wiki/Extension:Scribunto/ScribuntoExternalLibraries
+	 *
+	 * @param string $engine
+	 * @param string[] &$extraLibraries
+	 */
+	public function onScribuntoExternalLibraries( string $engine, array &$extraLibraries ) {
+		if ( $engine === 'lua' ) {
+			$extraLibraries['mw.ext.ParserFunctions'] = LuaLibrary::class;
+		}
+	}
+}