diff --git a/supervision/detection/core.py b/supervision/detection/core.py
index 51a24e5b..a8f90576 100644
--- a/supervision/detection/core.py
+++ b/supervision/detection/core.py
@@ -55,15 +55,15 @@ class Detections:
     Attributes:
         xyxy (np.ndarray): An array of shape `(n, 4)` containing the bounding boxes coordinates in format `[x1, y1, x2, y2]`
         mask: (Optional[np.ndarray]): An array of shape `(n, W, H)` containing the segmentation masks.
-        class_id (Optional[np.ndarray]): An array of shape `(n,)` containing the class ids of the detections.
         confidence (Optional[np.ndarray]): An array of shape `(n,)` containing the confidence scores of the detections.
+        class_id (Optional[np.ndarray]): An array of shape `(n,)` containing the class ids of the detections.
         tracker_id (Optional[np.ndarray]): An array of shape `(n,)` containing the tracker ids of the detections.
     """
 
     xyxy: np.ndarray
     mask: np.Optional[np.ndarray] = None
-    class_id: Optional[np.ndarray] = None
     confidence: Optional[np.ndarray] = None
+    class_id: Optional[np.ndarray] = None
     tracker_id: Optional[np.ndarray] = None
 
     def __post_init__(self):