diff --git a/src/GitLabApiClient/Models/ModifiableObject.cs b/src/GitLabApiClient/Models/ModifiableObject.cs
index 6e9c7963..109ad26e 100644
--- a/src/GitLabApiClient/Models/ModifiableObject.cs
+++ b/src/GitLabApiClient/Models/ModifiableObject.cs
@@ -11,7 +11,7 @@ internal ModifiableObject() { }
         public int Iid { get; set; }
 
         [JsonProperty("id")]
-        public int Id { get; set; }
+        public long Id { get; set; }
 
         [JsonProperty("created_at")]
         public DateTime CreatedAt { get; set; }