diff --git a/src/user.ts b/src/user.ts
index 8a1d6697..8280408f 100644
--- a/src/user.ts
+++ b/src/user.ts
@@ -52,7 +52,7 @@ const getUser = (username: String, users: User[]): User | null => {
 export const isValidUserAsync = (username: string, password: string, callback:(err: Error | null, isAuthorized?: boolean) => void) => {
   const user = getUser(username, userList);
   if (user) {
-    const hash = createHash("md5").update(password).digest("hex")
+    const hash = createHash("sha512").update(password).digest("hex")
     if (hash === user.password) {
       green(` User:'${user.username}' logged in as '${user.roles}'! `);
       callback(null, true);
diff --git a/src/utils/userfile.ts b/src/utils/userfile.ts
index eab3dcae..200d3dc2 100644
--- a/src/utils/userfile.ts
+++ b/src/utils/userfile.ts
@@ -32,7 +32,7 @@ export class UserFile {
         this.userList.push(Object.freeze({
             username: user.username,
             roles: user.roles,
-            password: createHash("md5").update(user.password).digest("hex")
+            password: createHash("sha512").update(user.password).digest("hex")
         }))
     }
 
diff --git a/user.json b/user.json
index f1e9a828..488c839f 100644
--- a/user.json
+++ b/user.json
@@ -2,17 +2,17 @@
     "users": [
         {
             "username":"admin",
-            "password":"6e6fdf956d04289354dcf1619e28fe77",
+            "password":"74e65264f45665748b385eb67d7531f285cee07d729e0ca18151d2e97be1837d5974b2a3747ad3db3310f0f98cec7fa622620ebd84e28cdc9fa3cc4e91be1b14",
             "roles":"Supervisor;ConfigureAdmin;SecurityAdmin"
         },
         {
             "username":"operator",
-            "password":"6d5779b9b85bd4f11e44c9772e0de602",
+            "password":"038e0f02c2776458dfe506724b62bd91c35e82ee8aa2bfddc7b19bb9acc7915abad0593c78c7831f97a0d7b5a0315fea2235f27e7fbf438bd86416dde12adae7",
             "roles":"Operator;ConfigureAdmin"
         },
         {
             "username":"guest",
-            "password":"de1774aac52706b13a39a08ad3ca7dfe",
+            "password":"9e98a8d3ed61072c8da7b61c487d95d7612698d2259374d594e74444692c9f4e0f01e742745af8b4c80d61a7f182255e9cdb4d07f76c619e1fd7e1c49bac05ac",
             "roles":"AuthenticatedUser"
         }
     ]