diff --git a/query-app/src/test/locust/ddb/requirements.txt b/query-app/src/test/locust/ddb/requirements.txt
index c7ebfd3..aa492de 100644
--- a/query-app/src/test/locust/ddb/requirements.txt
+++ b/query-app/src/test/locust/ddb/requirements.txt
@@ -1,3 +1,3 @@
 # Pinned so a load-test run is reproducible; Dependabot proposes updates.
 locust==2.47.0
-boto3==1.43.115
+boto3==1.43.123