diff --git a/recommendations/your-second-recsys-master/lecture_5/requirements.txt b/recommendations/your-second-recsys-master/lecture_5/requirements.txt
index c6be330..388a2a2 100644
--- a/recommendations/your-second-recsys-master/lecture_5/requirements.txt
+++ b/recommendations/your-second-recsys-master/lecture_5/requirements.txt
@@ -74,7 +74,7 @@ tenacity==8.0.1
 terminado==0.12.1
 testpath==0.5.0
 threadpoolctl==3.0.0
-tornado==6.1
+tornado==6.3.3
 tqdm==4.62.3
 traitlets==5.1.1
 typing-extensions==3.10.0.2