diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 9a6938ed64..5696852f52 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -9142,7 +9142,8 @@ function wp_fast_hash(
 	#[\SensitiveParameter]
 	string $message
 ): string {
-	return '$generic$' . sodium_bin2hex( sodium_crypto_generichash( $message ) );
+	$hashed = sodium_crypto_generichash( $message, 'wp_fast_hash_6.8+', 30 );
+	return '$generic$' . sodium_bin2base64( $hashed, SODIUM_BASE64_VARIANT_URLSAFE_NO_PADDING );
 }
 
 /**
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1b06df4154..de97dde903 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.8-alpha-59903';
+$wp_version = '6.8-alpha-59904';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.