diff --git a/requirements.txt b/requirements.txt
index 28303c2fc..71027fdb3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ mccabe==0.7.0
 certifi==2023.11.17
 
 pyparsing==3.1.1
-tornado==6.3.3
+tornado==6.4
 cssselect==1.2.0
 lxml==4.9.3
 fuzzywuzzy==0.18.0