diff --git a/FreeTubeSync/Model/Playlist.cs b/FreeTubeSync/Model/Playlist.cs
index b07026d..2d1627e 100644
--- a/FreeTubeSync/Model/Playlist.cs
+++ b/FreeTubeSync/Model/Playlist.cs
@@ -11,8 +11,8 @@ public class Playlist
     public string playlistName { get; set; } = string.Empty;
     public bool @protected { get; set; }
     public List<Video> videos { get; set; } = [];
-    public int createdAt { get; set; }
-    public int lastUpdatedAt { get; set; }
+    public long createdAt { get; set; }
+    public long lastUpdatedAt { get; set; }
 
     public void Update(Playlist other)
     {
diff --git a/FreeTubeSync/Model/SearchHistory.cs b/FreeTubeSync/Model/SearchHistory.cs
index 09dbc52..b005e71 100644
--- a/FreeTubeSync/Model/SearchHistory.cs
+++ b/FreeTubeSync/Model/SearchHistory.cs
@@ -8,7 +8,7 @@ public class SearchHistory
 {
     [Key]
     public string _id { get; set; } = string.Empty;
-    public int lastUpdatedAt { get; set; }
+    public long lastUpdatedAt { get; set; }
 
     public void Update(SearchHistory other)
     {
diff --git a/FreeTubeSync/Model/Video.cs b/FreeTubeSync/Model/Video.cs
index f02e9d2..56ddd25 100644
--- a/FreeTubeSync/Model/Video.cs
+++ b/FreeTubeSync/Model/Video.cs
@@ -11,8 +11,8 @@ public class Video
     public string author { get; set; } = string.Empty;
     public string authorId { get; set; } = string.Empty;
     public string lengthSeconds { get; set; } = string.Empty;
-    public int pubished { get; set; }
-    public int timeAdded { get; set; }
     public string playlistItemId { get; set; } = string.Empty;
+    public long pubished { get; set; }
+    public long timeAdded { get; set; }
     public string type { get; set; } = string.Empty;
 }
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