diff --git a/requirements.txt b/requirements.txt
index 5251d85c..345f7c5c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 opencv-python>=4.10.0.84
 numpy>=1.22.2
 bokeh>=2.4.3
-tornado>=6.4.1
+tornado>=6.5.5
 ipython>=8.29.0
 traitlets>=5.14.3
 pylsl>=1.16.2