diff --git a/data-science/weighted-shortest-path/code/requirements.txt b/data-science/weighted-shortest-path/code/requirements.txt
index 0b0aca7..95e4c87 100644
--- a/data-science/weighted-shortest-path/code/requirements.txt
+++ b/data-science/weighted-shortest-path/code/requirements.txt
@@ -74,7 +74,7 @@ six==1.15.0
 terminado==0.8.3
 testpath==0.4.4
 toml==0.10.2
-tornado==6.4.1
+tornado==6.4.2
 traitlets==4.3.3
 urllib3==1.26.19
 wcwidth==0.2.4