1 files changed, 7 insertions, 7 deletions
diff --git a/sphinx/deprecation.py b/sphinx/deprecation.py
index 6f0fb2db4..77b462da8 100644
--- a/sphinx/deprecation.py
+++ b/sphinx/deprecation.py
@@ -11,22 +11,22 @@
 import sys
 import warnings
 from importlib import import_module
-from typing import Any, Dict
-
-if False:
-    # For type annotation
-    from typing import Type  # for python3.5.1
+from typing import Any, Dict, Type
 
 
 class RemovedInSphinx40Warning(DeprecationWarning):
     pass
 
 
-class RemovedInSphinx50Warning(PendingDeprecationWarning):
+class RemovedInSphinx50Warning(DeprecationWarning):
+    pass
+
+
+class RemovedInSphinx60Warning(PendingDeprecationWarning):
     pass
 
 
-RemovedInNextVersionWarning = RemovedInSphinx40Warning
+RemovedInNextVersionWarning = RemovedInSphinx50Warning
 
 
 def deprecated_alias(modname: str, objects: Dict, warning: "Type[Warning]") -> None: