diff --git a/db/versions/11043-blackRoebelini/00-logLocker.sql b/db/versions/11043-blackRoebelini/00-logLocker.sql
new file mode 100644
index 000000000..ba615420b
--- /dev/null
+++ b/db/versions/11043-blackRoebelini/00-logLocker.sql
@@ -0,0 +1,2 @@
+ALTER TABLE vn.workerLog 
+    MODIFY COLUMN changedModel enum('Worker','Calendar','WorkerTimeControlMail','Business','WorkerDms','WorkerTimeControl', 'Locker') NOT NULL DEFAULT 'Worker';
diff --git a/modules/worker/back/models/locker.js b/modules/worker/back/models/locker.js
new file mode 100644
index 000000000..4475c2cd1
--- /dev/null
+++ b/modules/worker/back/models/locker.js
@@ -0,0 +1,21 @@
+module.exports = Self => {
+    Self.observe('before save', async ctx => {
+        const models = Self.app.models;
+        const changes = ctx.data || ctx.instance;
+        const instance = ctx.currentInstance;
+
+        const workerFk = changes?.workerFk || instance?.workerFk;
+        if (workerFk) {
+            const locker = await models.Locker.findOne({
+                where: {workerFk}
+            }, ctx.options);
+
+            if (locker) {
+                await Self.rawSql(
+                    'UPDATE locker SET workerFk = NULL where workerFk = ?',
+                    [workerFk],
+                    ctx.options);
+            }
+        }
+    });
+};
diff --git a/modules/worker/back/models/worker.json b/modules/worker/back/models/worker.json
index 76ad08d09..adfe2c58e 100644
--- a/modules/worker/back/models/worker.json
+++ b/modules/worker/back/models/worker.json
@@ -96,7 +96,7 @@
             "foreignKey": "workerFk"
         },
         "locker": {
-            "type": "hasOne",
+            "type": "hasMany",
             "model": "Locker",
             "foreignKey": "workerFk"
         }