diff --git a/ThunderstoreCLI/Models/PackageListingV1.cs b/ThunderstoreCLI/Models/PackageListingV1.cs
index 0f07ac4..b4b9f94 100644
--- a/ThunderstoreCLI/Models/PackageListingV1.cs
+++ b/ThunderstoreCLI/Models/PackageListingV1.cs
@@ -104,7 +104,7 @@ public class PackageVersionV1
     public string? Uuid4 { get; set; }
 
     [JsonProperty("file_size")]
-    public int FileSize { get; set; }
+    public long FileSize { get; set; }
 
     [JsonIgnore]
     private GroupCollection? _fullNameParts;