diff --git a/stdlib/2and3/plistlib.pyi b/stdlib/2and3/plistlib.pyi
index 279019959841..40a3f97e64da 100644
--- a/stdlib/2and3/plistlib.pyi
+++ b/stdlib/2and3/plistlib.pyi
@@ -9,7 +9,7 @@ from enum import Enum
 import sys
 
 mm = MutableMapping[str, Any]
-_D = TypeVar('_D', mm)
+_D = TypeVar('_D', bound=mm)
 if sys.version_info >= (3,):
     _Path = str
 else:
diff --git a/stdlib/3/unittest/__init__.pyi b/stdlib/3/unittest/__init__.pyi
index 0e074099fca7..0d06e258b1cc 100644
--- a/stdlib/3/unittest/__init__.pyi
+++ b/stdlib/3/unittest/__init__.pyi
@@ -12,7 +12,7 @@ from contextlib import ContextManager
 
 
 _T = TypeVar('_T')
-_FT = TypeVar('_FT', Callable[[Any], Any])
+_FT = TypeVar('_FT', bound=Callable[[Any], Any])
 
 
 def skip(reason: str) -> Callable[[_FT], _FT]: ...