diff --git a/src/models/mod.rs b/src/models/mod.rs
index d2cafb1..9f385ca 100644
--- a/src/models/mod.rs
+++ b/src/models/mod.rs
@@ -299,15 +299,15 @@ pub struct TimeBucketAssetResponse {
     /// Array of video durations in HH:MM:SS format (null for images)
     pub duration: Option<Vec<Option<String>>>,
     /// Array of file creation timestamps in UTC
-    pub file_created_at: Option<Vec<String>>,
+    pub file_created_at: Vec<String>,
     /// Array of asset IDs in the time bucket
     pub id: Vec<String>,
     /// Array indicating whether each asset is favorited
-    pub is_favorite: Option<Vec<bool>>,
+    pub is_favorite: Vec<bool>,
     /// Array indicating whether each asset is an image (false for videos)
-    pub is_image: Option<Vec<bool>>,
+    pub is_image: Vec<bool>,
     /// Array indicating whether each asset is in the trash
-    pub is_trashed: Option<Vec<bool>>,
+    pub is_trashed: Vec<bool>,
     /// Array of latitude coordinates extracted from EXIF GPS data
     pub latitude: Option<Vec<Option<f64>>>,
     /// Array of live photo video asset IDs (null for non-live photos)
@@ -317,7 +317,7 @@ pub struct TimeBucketAssetResponse {
     /// Array of longitude coordinates extracted from EXIF GPS data
     pub longitude: Option<Vec<Option<f64>>>,
     /// Array of owner IDs for each asset
-    pub owner_id: Option<Vec<String>>,
+    pub owner_id: Vec<String>,
     /// Array of projection types for 360° content
     pub projection_type: Option<Vec<Option<String>>>,
     /// Array of aspect ratios (width/height) for each asset
@@ -327,7 +327,7 @@ pub struct TimeBucketAssetResponse {
     /// Array of BlurHash strings for generating asset previews
     pub thumbhash: Option<Vec<Option<String>>>,
     /// Array of visibility statuses for each asset
-    pub visibility: Option<Vec<AssetVisibility>>,
+    pub visibility: Vec<AssetVisibility>,
 }
 
 #[cfg(test)]