diff --git a/ax/service/scheduler.py b/ax/service/scheduler.py
index c76d7a59f57..7bf156b0044 100644
--- a/ax/service/scheduler.py
+++ b/ax/service/scheduler.py
@@ -15,7 +15,7 @@
 from enum import Enum
 from logging import LoggerAdapter
 from time import sleep
-from typing import Any, Callable, cast, List, NamedTuple, Optional
+from typing import Any, Callable, cast, NamedTuple, Optional
 
 import ax.service.utils.early_stopping as early_stopping_utils
 from ax.core.base_trial import BaseTrial, TrialStatus
@@ -1739,7 +1739,7 @@ def generate_candidates(
         self,
         num_trials: int = 1,
         reduce_state_generator_runs: bool = False,
-    ) -> List[BaseTrial]:
+    ) -> list[BaseTrial]:
         """Fetch the latest data and generate new candidate trials.
 
         Args:
diff --git a/ax/storage/sqa_store/save.py b/ax/storage/sqa_store/save.py
index 534a2cd508e..9dbf5ddadf6 100644
--- a/ax/storage/sqa_store/save.py
+++ b/ax/storage/sqa_store/save.py
@@ -7,10 +7,11 @@
 # pyre-strict
 
 import os
+from collections.abc import Sequence
 from datetime import datetime
 
 from logging import Logger
-from typing import Any, Callable, cast, Optional, Sequence, Union
+from typing import Any, Callable, cast, Optional, Union
 
 from ax.analysis.analysis import AnalysisCard
 
diff --git a/scripts/validate_sphinx.py b/scripts/validate_sphinx.py
index 411d610d2ba..28587460404 100755
--- a/scripts/validate_sphinx.py
+++ b/scripts/validate_sphinx.py
@@ -8,7 +8,6 @@
 import os
 import pkgutil
 import re
-from typing import Set
 
 
 # Paths are relative to top-level Ax directory (which is passed into fxn below)
@@ -29,7 +28,7 @@
 }
 
 
-def parse_rst(rst_filename: str) -> Set[str]:
+def parse_rst(rst_filename: str) -> set[str]:
     """Extract automodule directives from rst."""
     ret = set()
     with open(rst_filename, "r") as f: