diff --git a/server/src/utils/auth.ts b/server/src/utils/auth.ts
index 8c4be451..e853b1ed 100644
--- a/server/src/utils/auth.ts
+++ b/server/src/utils/auth.ts
@@ -1,6 +1,6 @@
 import bcrypt from "bcrypt";
 
-export const hashPassword = (password: string) => {
+export const hashPassword = (password: string): Promise<string> => {
     return new Promise((resolve, reject) => {
         bcrypt.genSalt(12, (err, salt) => {
             if (err) {