diff --git a/requirements/adapter.txt b/requirements/adapter.txt
index 3cefd621d..64e2ac157 100644
--- a/requirements/adapter.txt
+++ b/requirements/adapter.txt
@@ -4,7 +4,7 @@
 boto3<=2
 bottle>=0.12,<1
 chalice>=1.28,<2;
-cheroot<11                              # https://github.com/slackapi/bolt-python/issues/1374
+cheroot<12                              # https://github.com/slackapi/bolt-python/issues/1374
 CherryPy>=18,<19
 Django>=3,<6
 falcon>=2,<5; python_version<"3.11"