diff --git a/composer.json b/composer.json
index c82224af9..d0fb35927 100644
--- a/composer.json
+++ b/composer.json
@@ -6,8 +6,7 @@
 	"license": "GPL-2.0+",
 	"require": {
 		"php": ">=5.4",
-		"composer/installers": "1.*,>=1.0.1",
-		"mediawiki/anti-spoof": "dev-master"
+		"composer/installers": "1.*,>=1.0.1"
 	},
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "0.9.2",
diff --git a/includes/parser/AbuseFilterParser.php b/includes/parser/AbuseFilterParser.php
index 097e248d2..f9bd15b3b 100644
--- a/includes/parser/AbuseFilterParser.php
+++ b/includes/parser/AbuseFilterParser.php
@@ -1106,34 +1106,17 @@ class AbuseFilterParser {
 	 * @return mixed
 	 */
 	protected function ccnorm( $s ) {
-		static $replacementArray = null;
-
-		if ( is_null( $replacementArray ) ) {
-			global $wgExtensionDirectory;
-
-			if ( is_readable( "$wgExtensionDirectory/AntiSpoof/equivset.php" ) ) {
-				// Satisfy analyzer.
-				$equivset = null;
-				// Contains a map of characters in $equivset.
-				require "$wgExtensionDirectory/AntiSpoof/equivset.php";
-
-				// strtr in ReplacementArray->replace() doesn't like this.
-				if ( isset( $equivset[''] ) ) {
-					unset( $equivset[''] );
-				}
-
-				$replacementArray = new ReplacementArray( $equivset );
-			} else {
-				// AntiSpoof isn't available, so just create a dummy
-				wfDebugLog(
-					'AbuseFilter',
-					"Can't compute normalized string (ccnorm) as the AntiSpoof Extension isn't installed."
-				);
-				$replacementArray = new ReplacementArray( [] );
-			}
+		if ( is_callable( 'AntiSpoof::normalizeString' ) ) {
+			$s = AntiSpoof::normalizeString( $s );
+		} else {
+			// AntiSpoof isn't available, so ignore and return same string
+			wfDebugLog(
+				'AbuseFilter',
+				"Can't compute normalized string (ccnorm) as the AntiSpoof Extension isn't installed."
+			);
 		}
 
-		return $replacementArray->replace( $s );
+		return $s;
 	}
 
 	/**