diff --git a/supervision/metrics/detection.py b/supervision/metrics/detection.py
index dcc90726..bc393469 100644
--- a/supervision/metrics/detection.py
+++ b/supervision/metrics/detection.py
@@ -500,7 +500,7 @@ class ConfusionMatrix:
     "`supervision.metrics.mean_average_precision.MeanAveragePrecision` instead. The "
     "deprecated implementation provides results that are inconsistent with pycocotools."
 )
-@dataclass()
+@dataclass(frozen=True)
 class MeanAveragePrecision:
     """
     !!! deprecated "Deprecated"
diff --git a/supervision/utils/internal.py b/supervision/utils/internal.py
index 242a4172..1cced171 100644
--- a/supervision/utils/internal.py
+++ b/supervision/utils/internal.py
@@ -114,13 +114,25 @@ def deprecated_parameter(
 
 
 def deprecated(reason: str):
-    def decorator(func):
-        @functools.wraps(func)
-        def wrapper(*args, **kwargs):
-            warn_deprecated(f"{func.__name__} is deprecated: {reason}")
-            return func(*args, **kwargs)
+    def decorator(cls_or_func):
+        if inspect.isclass(cls_or_func):
+            original_init = cls_or_func.__init__
 
-        return wrapper
+            @functools.wraps(original_init)
+            def new_init(self, *args, **kwargs):
+                warn_deprecated(f"{cls_or_func.__name__} is deprecated: {reason}")
+                original_init(self, *args, **kwargs)
+
+            cls_or_func.__init__ = new_init
+            return cls_or_func
+        else:
+
+            @functools.wraps(cls_or_func)
+            def wrapper(*args, **kwargs):
+                warn_deprecated(f"{cls_or_func.__name__} is deprecated: {reason}")
+                return cls_or_func(*args, **kwargs)
+
+            return wrapper
 
     return decorator