diff --git a/KfChatDotNetWsClient/Models/Events/EventHandlers.cs b/KfChatDotNetWsClient/Models/Events/EventHandlers.cs
index d2b4bf5..ce80166 100644
--- a/KfChatDotNetWsClient/Models/Events/EventHandlers.cs
+++ b/KfChatDotNetWsClient/Models/Events/EventHandlers.cs
@@ -18,7 +18,7 @@ public class EventHandlers
     public delegate void OnWsReconnectEventHandler(object sender, ReconnectionInfo reconnectionInfo);
 
     // Usually only one is sent at a time but it is a list hence the pluralization
-    public delegate void OnDeleteMessagesEventHandler(object sender, List<int> messageIds);
+    public delegate void OnDeleteMessagesEventHandler(object sender, List<string> messageIds);
 
     public delegate void OnWsDisconnectionEventHandler(object sender, DisconnectionInfo disconnectionInfo);
 
diff --git a/KfChatDotNetWsClient/Models/Json/DeleteMessagesJsonModel.cs b/KfChatDotNetWsClient/Models/Json/DeleteMessagesJsonModel.cs
index f8c8911..18b4abd 100644
--- a/KfChatDotNetWsClient/Models/Json/DeleteMessagesJsonModel.cs
+++ b/KfChatDotNetWsClient/Models/Json/DeleteMessagesJsonModel.cs
@@ -5,5 +5,5 @@ namespace KfChatDotNetWsClient.Models.Json;
 public class DeleteMessagesJsonModel
 {
     [JsonPropertyName("delete")]
-    public required List<int> MessageIdsToDelete { get; set; }
+    public required List<string> MessageIdsToDelete { get; set; }
 }
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