diff --git a/cmd/main-migration/migrations/20251210145148.sql b/cmd/main-migration/migrations/20251210145148.sql
new file mode 100644
index 00000000..6a37b2af
--- /dev/null
+++ b/cmd/main-migration/migrations/20251210145148.sql
@@ -0,0 +1,2 @@
+-- Modify "User" table
+ALTER TABLE "public"."User" ALTER COLUMN "Name" TYPE character varying(50);
diff --git a/cmd/main-migration/migrations/atlas.sum b/cmd/main-migration/migrations/atlas.sum
index 2e221903..ca21de20 100644
--- a/cmd/main-migration/migrations/atlas.sum
+++ b/cmd/main-migration/migrations/atlas.sum
@@ -1,4 +1,4 @@
-h1:EHAhH6MGySJoRcgSvt6ywIwf2q43rG18Z8fwEpuukdM=
+h1:nDEuOqs0hKLyxdzKDcaNhEkrmnmbm6o/jgoGigw47bo=
 20250904105930.sql h1:MEM6blCgke9DzWQSTnLzasbPIrcHssNNrJqZpSkEo6k=
 20250904141448.sql h1:J8cmYNk4ZrG9fhfbi2Z1IWz7YkfvhFqTzrLFo58BPY0=
 20250908062237.sql h1:Pu23yEW/aKkwozHoOuROvHS/GK4ngARJGdO7FB7HZuI=
@@ -160,3 +160,4 @@ h1:EHAhH6MGySJoRcgSvt6ywIwf2q43rG18Z8fwEpuukdM=
 20251209064304.sql h1:Xs73yQbuJvuQ0OnW1FAZpeytmUl/bGTlJFrwGOsTF4w=
 20251209070128.sql h1:fPGE6xOV6uCiVOqnvwn2L/GsBbgp2wxgmZOhF3bSGGM=
 20251209084929.sql h1:u4LPMvkGAH4RfGC2IlBTIm7T7paMHoBSvTQ0w5Br7d0=
+20251210145148.sql h1:EWbK5f1QKyhaVsKZfJFunmQuw22Msl0Ox3KQ/uag2bw=
diff --git a/internal/domain/main-entities/user/entity.go b/internal/domain/main-entities/user/entity.go
index f51dbf14..712a70e1 100644
--- a/internal/domain/main-entities/user/entity.go
+++ b/internal/domain/main-entities/user/entity.go
@@ -10,7 +10,7 @@ import (
 
 type User struct {
 	ecore.Main                                     // adjust this according to the needs
-	Name                  string                   `json:"name" gorm:"unique;not null;size:25"`
+	Name                  string                   `json:"name" gorm:"unique;not null;size:50"`
 	Password              string                   `json:"password" gorm:"not null;size:255"`
 	Status_Code           erc.UserStatusCode       `json:"status_code" gorm:"not null;size:10"`
 	ContractPosition_Code erg.ContractPositionCode `json:"contractPosition_code" gorm:"not null;size:20"`