diff --git a/.ci/generate_test_report_lib.py b/.ci/generate_test_report_lib.py
index 5b16599cc743..ed86ab88e66d 100644
--- a/.ci/generate_test_report_lib.py
+++ b/.ci/generate_test_report_lib.py
@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 """Library to parse JUnit XML files and return a markdown report."""
 
-from typing import TypedDict, Optional
+from typing import TypedDict
 import platform
 
 from junitparser import JUnitXml, Failure
@@ -11,12 +11,10 @@ from junitparser import JUnitXml, Failure
 
 # This data structure should match the definition in llvm-zorg in
 # premerge/advisor/advisor_lib.py
-# TODO(boomanaiden154): Drop the Optional here and switch to str | None when
-# we require Python 3.10.
 class FailureExplanation(TypedDict):
     name: str
     explained: bool
-    reason: Optional[str]
+    reason: str | None
 
 
 SEE_BUILD_FILE_STR = "Download the build's log file to see the details."
diff --git a/.ci/premerge_advisor_explain.py b/.ci/premerge_advisor_explain.py
index 4a3900021ede..6046905284cc 100644
--- a/.ci/premerge_advisor_explain.py
+++ b/.ci/premerge_advisor_explain.py
@@ -8,10 +8,6 @@ import platform
 import sys
 import json
 
-# TODO(boomanaiden154): Remove the optional call once we can require Python
-# 3.10.
-from typing import Optional
-
 import requests
 import github
 import github.PullRequest
@@ -24,7 +20,7 @@ PREMERGE_ADVISOR_URL = (
 COMMENT_TAG = "<!--PREMERGE ADVISOR COMMENT: {platform}-->"
 
 
-def get_comment_id(platform: str, pr: github.PullRequest.PullRequest) -> Optional[int]:
+def get_comment_id(platform: str, pr: github.PullRequest.PullRequest) -> int | None:
     platform_comment_tag = COMMENT_TAG.format(platform=platform)
     for comment in pr.as_issue().get_comments():
         if platform_comment_tag in comment.body: