diff --git a/retryhttp/_retry.py b/retryhttp/_retry.py
index 3c5d796..0f44ba0 100644
--- a/retryhttp/_retry.py
+++ b/retryhttp/_retry.py
@@ -1,4 +1,4 @@
-from typing import Any, Callable, Optional, Sequence, Tuple, Type, Union
+from typing import Any, Optional, Sequence, Tuple, Type, Union
 
 from tenacity import (
     RetryCallState,
@@ -25,7 +25,7 @@
 
 
 def retry(
-    func: Optional[Callable] = None,
+    func: Optional[F] = None,
     *,
     max_attempt_number: int = 3,
     retry_server_errors: bool = True,
@@ -42,7 +42,7 @@ def retry(
     ] = None,
     timeouts: Union[Type[BaseException], Tuple[Type[BaseException], ...], None] = None,
     **kwargs: Any,
-) -> Any:
+) -> F:
     """Retry potentially transient HTTP errors with sensible default behavior.
 
     By default, retries the following errors, for a total of 3 attempts, with
diff --git a/retryhttp/_utils.py b/retryhttp/_utils.py
index 4643ee6..b33f11c 100644
--- a/retryhttp/_utils.py
+++ b/retryhttp/_utils.py
@@ -22,9 +22,9 @@
     pass
 
 
-def get_default_network_errors() -> (
-    Tuple[Union[Type[httpx.NetworkError], Type[requests.ConnectionError]], ...]
-):
+def get_default_network_errors() -> Tuple[
+    Union[Type[httpx.NetworkError], Type[requests.ConnectionError]], ...
+]:
     """Get all network errors to use by default.
 
     Args:
@@ -56,9 +56,9 @@ def get_default_network_errors() -> (
     return tuple(exceptions)
 
 
-def get_default_timeouts() -> (
-    Tuple[Type[Union[httpx.TimeoutException, requests.Timeout]], ...]
-):
+def get_default_timeouts() -> Tuple[
+    Type[Union[httpx.TimeoutException, requests.Timeout]], ...
+]:
     """Get all timeout exceptions to use by default.
 
     Returns:
@@ -73,9 +73,9 @@ def get_default_timeouts() -> (
     return tuple(exceptions)
 
 
-def get_default_http_status_exceptions() -> (
-    Tuple[Union[Type[httpx.HTTPStatusError], Type[requests.HTTPError]], ...]
-):
+def get_default_http_status_exceptions() -> Tuple[
+    Union[Type[httpx.HTTPStatusError], Type[requests.HTTPError]], ...
+]:
     """Get default HTTP status 4xx or 5xx exceptions.
 
     Returns: