diff --git a/stdlib/3/inspect.pyi b/stdlib/3/inspect.pyi
index 3a10d6c4f..ce84e895d 100644
--- a/stdlib/3/inspect.pyi
+++ b/stdlib/3/inspect.pyi
@@ -219,13 +219,13 @@ def formatargspec(args: List[str],
                   defaults: Optional[Tuple[Any, ...]] = ...,
                   kwonlyargs: Optional[List[str]] = ...,
                   kwonlydefaults: Optional[Dict[str, Any]] = ...,
-                  annotations: Optional[Dict[str, Any]] = ...,
-                  formatarg: Optional[Callable[[str], str]] = ...,
-                  formatvarargs: Optional[Callable[[str], str]] = ...,
-                  formatvarkw: Optional[Callable[[str], str]] = ...,
-                  formatvalue: Optional[Callable[[Any], str]] = ...,
-                  formatreturns: Optional[Callable[[Any], str]] = ...,
-                  formatannotations: Optional[Callable[[Any], str]] = ...,
+                  annotations: Dict[str, Any] = ...,
+                  formatarg: Callable[[str], str] = ...,
+                  formatvarargs: Callable[[str], str] = ...,
+                  formatvarkw: Callable[[str], str] = ...,
+                  formatvalue: Callable[[Any], str] = ...,
+                  formatreturns: Callable[[Any], str] = ...,
+                  formatannotations: Callable[[Any], str] = ...,
                   ) -> str: ...
 def formatargvalues(args: List[str],
                     varargs: Optional[str] = ...,