diff --git a/modules/ticket/back/models/ticket-service.js b/modules/ticket/back/models/ticket-service.js
index cdb57650a..aa94c42e3 100644
--- a/modules/ticket/back/models/ticket-service.js
+++ b/modules/ticket/back/models/ticket-service.js
@@ -1,16 +1,13 @@
 const UserError = require('vn-loopback/util/user-error');
-const LoopBackContext = require('loopback-context');
 
 module.exports = Self => {
     Self.observe('before save', async ctx => {
-        const loopBackContext = LoopBackContext.getCurrentContext();
-        const httpCtx = {req: loopBackContext.active};
         const models = Self.app.models;
         let changes = ctx.currentInstance || ctx.instance;
         if (changes) {
             let ticketId = changes.ticketFk;
-            let isEditable = await models.Ticket.isEditable(httpCtx, ticketId);
-            if (!isEditable)
+            let isLocked = await models.Ticket.isLocked(ticketId);
+            if (isLocked)
                 throw new UserError(`The current ticket can't be modified`);
 
             if (changes.ticketServiceTypeFk) {
@@ -21,13 +18,11 @@ module.exports = Self => {
     });
 
     Self.observe('before delete', async ctx => {
-        const loopBackContext = LoopBackContext.getCurrentContext();
-        const httpCtx = {req: loopBackContext.active};
         const models = Self.app.models;
         const service = await models.TicketService.findById(ctx.where.id);
-        const isEditable = await models.Ticket.isEditable(httpCtx, service.ticketFk);
+        const isLocked = await models.Ticket.isLocked(service.ticketFk);
 
-        if (!isEditable)
+        if (isLocked)
             throw new UserError(`The current ticket can't be modified`);
     });
 };
diff --git a/package-lock.json b/package-lock.json
index 68004c13c..1c02e021a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17073,9 +17073,9 @@
             }
         },
         "ssri": {
-            "version": "6.0.1",
-            "resolved": "https://registry.npmjs.org/ssri/-/ssri-6.0.1.tgz",
-            "integrity": "sha512-3Wge10hNcT1Kur4PDFwEieXSCMCJs/7WvSACcrMYrNp+b8kDL1/0wJch5Ni2WrtwEa2IO8OsVfeKIciKCDx/QA==",
+            "version": "6.0.2",
+            "resolved": "https://registry.npmjs.org/ssri/-/ssri-6.0.2.tgz",
+            "integrity": "sha512-cepbSq/neFK7xB6A50KHN0xHDotYzq58wWCa5LeWqnPrHG8GzfEjO/4O8kpmcGW+oaxkvhEJCWgbgNk4/ZV93Q==",
             "dev": true,
             "requires": {
                 "figgy-pudding": "^3.5.1"