diff --git a/ds-round-trip/requirements.txt b/ds-round-trip/requirements.txt
index 7f3c4fb..ca46324 100644
--- a/ds-round-trip/requirements.txt
+++ b/ds-round-trip/requirements.txt
@@ -107,7 +107,7 @@ terminado==0.18.1 ; python_version >= "3.10" and python_version < "4.0"
 threadpoolctl==3.5.0 ; python_version >= "3.10" and python_version < "4.0"
 tinycss2==1.4.0 ; python_version >= "3.10" and python_version < "4.0"
 tomli==2.2.1 ; python_version >= "3.10" and python_version < "3.11"
-tornado==6.5.1 ; python_version >= "3.10" and python_version < "4.0"
+tornado==6.5.5 ; python_version >= "3.10" and python_version < "4.0"
 traitlets==5.14.3 ; python_version >= "3.10" and python_version < "4.0"
 types-python-dateutil==2.9.0.20241206 ; python_version >= "3.10" and python_version < "4.0"
 typing-extensions==4.12.2 ; python_version >= "3.10" and python_version < "4.0"