diff --git a/types/sequelize/index.d.ts b/types/sequelize/index.d.ts
index f80d5acc40..88ed87efae 100644
--- a/types/sequelize/index.d.ts
+++ b/types/sequelize/index.d.ts
@@ -3908,6 +3908,7 @@ declare namespace sequelize {
          */
         findById<TCustomAttributes>(identifier?: number | string | Buffer, options?: FindOptions<TAttributes & TCustomAttributes>): Promise<TInstance | null>;
         findByPrimary<TCustomAttributes>(identifier?: number | string | Buffer, options?: FindOptions<TAttributes & TCustomAttributes>): Promise<TInstance | null>;
+        findByPk<TCustomAttributes>(identifier?: number | string | Buffer, options?: FindOptions<TAttributes & TCustomAttributes>): Promise<TInstance | null>;
 
         /**
          * Search for a single instance. This applies LIMIT 1, so the listener will always be called with a single