diff --git a/Back/skydiveLogs-api.Domain/User.cs b/Back/skydiveLogs-api.Domain/User.cs
index f21008a..83071bb 100644
--- a/Back/skydiveLogs-api.Domain/User.cs
+++ b/Back/skydiveLogs-api.Domain/User.cs
@@ -4,16 +4,18 @@
     {
         public int Id { get; set; }
 
-		public string Email { get; set; }
+        public string Email { get; set; }
 
-		public string FirstName { get; set; }
+        public string FirstName { get; set; }
 
-		public string LastName { get; set; }
+        public string LastName { get; set; }
 
         public string Login { get; set; }
 
         public string Password { get; set; }
 
         public bool IsAdmin { get; set; }
+
+        public string Language { get; set; }
     }
-}
+}
\ No newline at end of file
diff --git a/Back/skydiveLogs-api/Controllers/UserController.cs b/Back/skydiveLogs-api/Controllers/UserController.cs
index 7529573..bba768d 100644
--- a/Back/skydiveLogs-api/Controllers/UserController.cs
+++ b/Back/skydiveLogs-api/Controllers/UserController.cs
@@ -118,7 +118,8 @@ namespace skydiveLogs_api.Controllers
                                                 new Claim(ClaimTypes.Name, foundUser.Login),
                                                 new Claim(ClaimTypes.UserData, foundUser.Id.ToString()),
                                                 new Claim(ClaimTypes.Email, foundUser.Email),
-                                                new Claim(ClaimTypes.Role, foundUser.Roles)
+                                                new Claim(ClaimTypes.Role, foundUser.Roles),
+                                                new Claim("Language", foundUser.Language ?? "")
                                              });
 
             return new JwtSecurityTokenHandler().WriteToken(token);
diff --git a/Back/skydiveLogs-api/DataContract/UserReq.cs b/Back/skydiveLogs-api/DataContract/UserReq.cs
index 7402a62..fd0da21 100644
--- a/Back/skydiveLogs-api/DataContract/UserReq.cs
+++ b/Back/skydiveLogs-api/DataContract/UserReq.cs
@@ -11,5 +11,7 @@
         public string Password { get; set; }
 
         public string Email { get; set; }
+
+        public string Language { get; set; }
     }
-}
+}
\ No newline at end of file
diff --git a/Back/skydiveLogs-api/DataContract/UserResp.cs b/Back/skydiveLogs-api/DataContract/UserResp.cs
index 5bcf67e..9e9002a 100644
--- a/Back/skydiveLogs-api/DataContract/UserResp.cs
+++ b/Back/skydiveLogs-api/DataContract/UserResp.cs
@@ -4,7 +4,7 @@
     {
         public int Id { get; set; }
 
-		public string Email { get; set; }
+        public string Email { get; set; }
 
         public string FirstName { get; set; }
 
@@ -15,5 +15,7 @@
         public string Roles { get; set; }
 
         public string Token { get; set; }
+
+        public string Language { get; set; }
     }
-}
+}
\ No newline at end of file
diff --git a/Back/skydiveLogs-api/skydiveLogs-api.csproj b/Back/skydiveLogs-api/skydiveLogs-api.csproj
index cea2cc4..a914049 100644
--- a/Back/skydiveLogs-api/skydiveLogs-api.csproj
+++ b/Back/skydiveLogs-api/skydiveLogs-api.csproj
@@ -20,7 +20,7 @@
   <ItemGroup>
     <PackageReference Include="AutoMapper" Version="10.1.1" />
     <PackageReference Include="AutoMapper.Extensions.Microsoft.DependencyInjection" Version="8.1.1" />
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="5.0.5" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="5.0.6" />
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="5.0.2" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="6.11.0" />
   </ItemGroup>