diff --git a/requirements.all.txt b/requirements.all.txt
index 832ed605a..ebc3143b5 100644
--- a/requirements.all.txt
+++ b/requirements.all.txt
@@ -1219,7 +1219,7 @@ torchvision==0.24.1
     # via
     #   zetta-utils (pyproject.toml)
     #   onnx2torch
-tornado==6.5.3
+tornado==6.5.5
     # via neuroglancer
 tqdm==4.67.1
     # via
diff --git a/requirements.modules.txt b/requirements.modules.txt
index b4d9b2416..30a48c621 100644
--- a/requirements.modules.txt
+++ b/requirements.modules.txt
@@ -1081,7 +1081,7 @@ torchvision==0.24.1
     # via
     #   zetta-utils (pyproject.toml)
     #   onnx2torch
-tornado==6.5.2
+tornado==6.5.5
     # via
     #   mitmproxy
     #   neuroglancer