diff --git a/ptbcontrib/roles/requirements.txt b/ptbcontrib/roles/requirements.txt
index 688b2c0..1c66edc 100644
--- a/ptbcontrib/roles/requirements.txt
+++ b/ptbcontrib/roles/requirements.txt
@@ -1 +1 @@
-python-telegram-bot~=20.0
+python-telegram-bot~=21.6
diff --git a/ptbcontrib/roles/roleshandler.py b/ptbcontrib/roles/roleshandler.py
index 012a5ef..f61755f 100644
--- a/ptbcontrib/roles/roleshandler.py
+++ b/ptbcontrib/roles/roleshandler.py
@@ -87,9 +87,10 @@ def setup_roles(application: Application) -> Roles:
 
 
 _CCT = TypeVar("_CCT", bound=CallbackContext)
+RT = TypeVar("RT")
 
 
-class RolesHandler(BaseHandler[Update, _CCT]):
+class RolesHandler(BaseHandler[Update, _CCT, RT]):
     """
     A handler that acts as wrapper for existing handler classes allowing to add roles for
     user access management. You must call :meth:`setup_roles` before this handler can work.
@@ -111,7 +112,7 @@ class RolesHandler(BaseHandler[Update, _CCT]):
     """
 
     def __init__(
-        self, handler: BaseHandler[Update, _CCT], roles: Union[Role, InvertedRole, None]
+        self, handler: BaseHandler[Update, _CCT, RT], roles: Union[Role, InvertedRole, None]
     ) -> None:
         self.handler = handler
         self.roles: Union[Role, InvertedRole, None] = roles