diff --git a/fastapi/applications.py b/fastapi/applications.py
index 9598dad5af..19a2014efa 100644
--- a/fastapi/applications.py
+++ b/fastapi/applications.py
@@ -1029,13 +1029,13 @@ class FastAPI(Starlette):
                 exception_handlers[key] = value
 
         middleware = (
-            [Middleware(ServerErrorMiddleware, handler=error_handler, debug=debug)]  # type: ignore[invalid-argument-type]
+            [Middleware(ServerErrorMiddleware, handler=error_handler, debug=debug)]  # ty: ignore[invalid-argument-type]
             + self.user_middleware
             + [
                 Middleware(
-                    ExceptionMiddleware,
+                    ExceptionMiddleware,  # ty: ignore[invalid-argument-type]
                     handlers=exception_handlers,
-                    debug=debug,  # type: ignore[invalid-argument-type]
+                    debug=debug,
                 ),
                 # Add FastAPI-specific AsyncExitStackMiddleware for closing files.
                 # Before this was also used for closing dependencies with yield but
@@ -1056,7 +1056,7 @@ class FastAPI(Starlette):
                 # user middlewares, the same context is used.
                 # This is currently not needed, only for closing files, but used to be
                 # important when dependencies with yield were closed here.
-                Middleware(AsyncExitStackMiddleware),  # type: ignore[invalid-argument-type]
+                Middleware(AsyncExitStackMiddleware),  # ty: ignore[invalid-argument-type]
             ]
         )
 
@@ -4638,7 +4638,7 @@ class FastAPI(Starlette):
         """
 
         def decorator(func: DecoratedCallable) -> DecoratedCallable:
-            self.add_middleware(BaseHTTPMiddleware, dispatch=func)  # type: ignore[arg-type]
+            self.add_middleware(BaseHTTPMiddleware, dispatch=func)  # ty: ignore[invalid-argument-type]
             return func
 
         return decorator