diff --git a/aiocache/decorators.py b/aiocache/decorators.py
index d5cdac5d..7ff69db0 100644
--- a/aiocache/decorators.py
+++ b/aiocache/decorators.py
@@ -2,6 +2,7 @@
 import functools
 import inspect
 import logging
+from typing import Any, Awaitable, Callable, ParamSpec, TypeVar
 
 from aiocache.base import SENTINEL
 from aiocache.factory import Cache, caches
@@ -9,6 +10,9 @@
 
 logger = logging.getLogger(__name__)
 
+P = ParamSpec("P")
+T = TypeVar("T", bound=Any)
+
 
 class cached:
     """
@@ -83,7 +87,7 @@ def __init__(
         self._plugins = plugins
         self._kwargs = kwargs
 
-    def __call__(self, f):
+    def __call__(self, f: Callable[P, Awaitable[T]]) -> Callable[P, Awaitable[T]]:
         if self.alias:
             self.cache = caches.get(self.alias)
             for arg in ("serializer", "namespace", "plugins"):
@@ -99,7 +103,7 @@ def __call__(self, f):
             )
 
         @functools.wraps(f)
-        async def wrapper(*args, **kwargs):
+        async def wrapper(*args: P.args, **kwargs: P.kwargs) -> T:
             return await self.decorator(f, *args, **kwargs)
 
         wrapper.cache = self.cache